I would like to share here a post from Facebook that also utilized some of Cleric's recent illustrations since it might be generally helpful to contemplate.
FB, I hope you take some time to contemplate the post when you have a chance, and try to discern how the pre-1900 Steiner works truly harmonize at a deep level with the post-1900 spiritual scientific works. They harmonize
through our effortful intuitive activity, of course. That is especially true on the question of 'spiritual purposes' at work within Earthly evolution. As discussed on Facebook, by 'spiritual' and 'purpose' I mean exactly what they mean in PoF - the
experience of being
intentionally active in structuring the phenomenal flow. For humans, this is most clearly experienced in structuring our mental pictures where the meaning of our flow is most 'in focus', for example when we intend to perform a mathematical operation. For higher beings, we need to stretch our imagination and
intuitively feel how the phenomenal flow of our deeper inner states - impulses, moods, emotions, organic rhythms, physical sensations - are structured through more integrated intentional activity.
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"The essence of Monism consists in the assumption that all occurrences in the world, from the simplest mechanical ones upwards to the highest human intellectual creations, evolve themselves naturally in the same sense, and that everything which is called in for the explanation of appearances, must be sought within that same world. Opposed to this view stands Dualism, which regards the pure operation of natural law as insufficient to explain appearances, and takes refuge in a reasoning being ruling over the appearances from above. Natural science, as has been shown, must reject this dualism." (GA 30, I)
Meditating on quotes such as this one provides some of the most important foundations for orienting properly to Steiner's post-1900 spiritual scientific communications. At first, this may seem counter-intuitive, since the quote seems to be at odds with the vision of Anthroposophy and spiritual science, i.e. the vision of spiritual beings guiding human destiny from Alpha to Omega, but let's withhold judgment for a moment and see if we can explore the reasons why they harmonize further. There are generally two ways the intellect thinks about this question of 'purposes' in evolution.
1/ There were no purposes before human beings with self-consciousness. Nature evolved from very simple instinctive processes to more and more complex organizations, which eventually became self-conscious, and only then can we speak of purposes working in Nature.
2/ There were always purposes at work in the evolutionary process. The Ideas of God(s) have directed the course of evolution from the beginning and continue to determine how our Earthly destinies unfold.
We can see these are both metaphysical assertions - in one case we snap together our mental pictures (thoughts) in a way that results in the meaning of 1/, and in the other case, we snap them together in a way that results in the meaning of 2/. For some people, the snapping of thoughts into 1/ feels more coherent and convincing and, for others, the snapping into 2/ feels more coherent and convincing. In both cases, it is important to notice how we are only left with our mental pictures
about the "purposes at work in evolution" and therefore get mired in endless debate with our intellectual opponents. One side selectively points to the empirical evidence that supports the meaning of its mental pictures, and the other side does the same for the meaning of its mental pictures. That is the essence of our dualistic condition today - on the one hand, we feel confined to our mental pictures about the 'true reality', and on the other, we know that the contents of our mental pictures cannot themselves
be the 'true reality'. Is there another way of approaching this question that doesn't leave us confined within the tissue of our mental pictures?
Steiner, from the very outset of his epistemic works (GA 1-4), has pointed us toward an entirely different and more participatory way of conducting this inquiry to reach an intellectually satisfying and morally productive answer. He invites us to focus less on the meaning of the mental pictures we snap together and focus more on the
flow of our inner states of being, most importantly the flow of our mental pictures where the meaning we are exploring is most 'in focus'. He asks us to try, with great devotion to this intimate inquiry and great concentration on its pursuit, to become more intuitively aware of what constrains, steers, and shapes the flow of those mental pictures and deeper inner states (including psychic and physical sensations). For example, it is clear that everything that we normally conceive as 'sympathies and antipathies' steers our attention, interests, and actions in one direction or another.
The monistic doctrine of evolution, however, is in complete agreement with the fact of self-observation. If the human soul has evolved itself slowly and step by step along with the organs of the soul out of lower conditions, then it is self-evident that we can explain its development from below scientifically, though we can discover the inner nature of that which emerges from the complex structure of the human brain only from the contemplation of this very nature itself. Had spirit been always present in a form resembling the human, and had it at last created its likeness in man alone, then we ought to be able to deduce the human spirit from the All-spirit; but if man's spirit has arisen as a new formation in the course of natural evolution, then we can understand its origin by following out its line of ancestry; we learn to know the stage at which it has at last arrived when we contemplate that spirit itself.
A philosophy that understands itself, and turns its attention to an unprejudiced contemplation of the human spirit, thus yields a further proof of the correctness of the monistic world-conception. (Ibid)
To get a feel for the difference between these two approaches, we can imagine that we decide to slowly count from 1 to 10 in our mind. As we progress from pronouncing "1" to "2" to "3", etc.. we have a very clear
intuitive sense of how our momentary verbalizations are structured through time. The auditory vibrations of our inner voice, as we pronounce the words of the numbers, do not meet us like a foreign object, for example, the erratic movements of a fly buzzing around, but as an orderly progression of inner states guided by our general meaningful intent to count. If we are currently at "5", even though we haven’t yet reached ten, we have a good intuitive sense of where the process is going and what inner state will soon condense at our mental horizon, even though we haven’t yet pronounced the next numbers in our mind. This intuitive sense also gives us orientation for how we have reached our present state through the previously pronounced numbers.
Observation and thought are the two sources of our knowledge about things; and that holds good for all things and happenings, except only for the thinking consciousness itself. To that we cannot add by any explanation anything that does not lie already in the observation itself. It yields us the laws for all other things; it yields us at the same time its own laws also. If we want to demonstrate the correctness of a natural law, we accomplish this by distinguishing, arranging observations and perceptions, and drawing conclusions—that is, we form conceptions and ideas about the experiences in question with the help of thinking. As to the correctness of the thinking, thought itself alone decides. It is thus thought which, in regard to all that happens in the world, carries us beyond mere observation, though it does not carry us beyond itself. (Ibid)
Now to feel the contrast with the previous metaphysical approach (1/ and 2/ above), we can imagine that just when we pronounce "5" we somehow
forget that we are intentionally counting. Then we hear in our mind "5"’ but it sounds like a thought that randomly pops in our mind. We have no intuitive sense of either why it appeared or that something else should appear afterward. In this case, we make a mental picture of the sound "5" and then try to complement it with other mental pictures that should 'explain' it, like chemical reactions, neurons, supernatural beings who created the sound in our mind, and so forth. We feel satisfied with our explanation when these mental images are snapped together like puzzle pieces and seem to make intuitive sense, i.e. they feel internally coherent in some way.
Notice, however, how this explanation made of snapping mental images together remains abstract. We don’t know with certainty whether our mental puzzle truly corresponds to reality or not, even though the pieces may fit together very convincingly. We are then destined to remain mired in debate with our intellectual opponents. Contrast this with the experience of suddenly
remembering our counting activity. This provides us with a completely different kind of ‘explanation’. We no longer need to assemble mental puzzles but instead, our intent to count fills the vacuum and makes intuitive sense of why the "5" appeared in our consciousness.
In that sense, PoF first brings us to the realization that most phenomena in our sensory and psychic environment meet us exactly like the "5" sound after we have forgotten our intent to count. If we are honest with ourselves, we don't feel like these phenomena, including our impulses, moods, and emotions, are guided along the 'curvature' of our meaningful intents. Instead, they are more like the erratic fly buzzing around - we dimly sense there is meaningful activity going on, but it begins as relatively isolated phenomena without a clear sense of from whence they came and to whence they are going. As thinking beings (assuming we are interested in exploring the nature of our existence), we quickly search for mental puzzle pieces to snap together such that the phenomena feel to attain more intuitive coherency. Yet, as we saw above, the mental puzzles remain abstract and uncertain.
Once we have confessed this habitual aspect of our ordinary mental life, we are in a position to begin
remembering the intuitive intents that structure the flow of the mental pictures and deeper inner states. These intuitive intents will never be discovered as additional mental pictures that confront us from without, just as our 'intent to count' cannot be perceived as additional colors, sounds, tastes, etc. They can only be
lived into and intuitively sensed
from within. Now we are truly in a position to understand Steiner's original quote. As long as we keep searching for 'purposes' in either the contents of our current mental pictures or as some as-of-yet unperceived content that can eventually be discovered as
more mental pictures (or, under the Kantian view, can never be discovered but only inferred), we have not understood the nature of our intimate intuitive activity. We are still expecting to find 'purposes' in a direction where they can
never be truly found.
How can we apply what we have discussed so far to the communications of spiritual science? Steiner provides many detailed illustrations of how Angels and Archangels, for example, work their purposes - their intuitive intents - into human evolution. All of these illustrations give us
symbolic angles from which to approach the
inner life of these spiritual beings and to more intimately experience how our inner states are modulated on the waves of their spiritual activity. We can try to sense how, for example, our inner verbal thoughts emerge as a kind of commentary on the inner meaning we instinctively steer our way through, i.e. various sensory events, memory experiences, and corresponding moods, emotions, sympathies, etc. The latter is experienced as theatrical 'movie scenes' of mental pictures that we are
dreaming our way through, which we sometimes become more sensitive to in the transition from sleeping to waking or vice versa, and these scenes are encoded as verbal commentaries in our waking thoughts. By living into such experiences, we begin to resonate more with the imagistic Angelic perspective which constrains and shapes our ordinary verbal thoughts.
Steiner also gives many illustrations of the 'folk souls' or Archangels. For this inner constraint, we can imagine the superimposed inner flow of all people from a given nation (imagined not as stacked abstract pictures in front of us, but imagining the
inner life of those people superimposed over ours). There will be some regularities between our inner flows. Most of the things will 'cancel out' but certain elements of the flow will 'add up', which would be certain soul tendencies that are characteristic of the group, i.e. the inner gestures that form the common language, and so on. It may turn out that this sum belongs to a
coherent perspective that conducts its intuitive intents within the unified World flow, which we dimly experience as linguistic and other collective soul constraints, such as national temperament, on our ordinary feelings and thoughts.
This also makes it clear why we can never gain consciousness of the intuitive intents within the World flow as a result of some purely personal development. The inner life of the Archangel remains completely unknown to our consciousness unless we expand our interests to feel how our flow is superimposed with that of all people from a nation. Only in that way can we inwardly understand the common element that is intuitively steered by the Archangel. Then if we go even further than the national spirits, we can experience the common element in
all human beings. This also leads us to a coherent perspective of the World flow known as the Christ. It becomes easy to see in this way why the impulse that the Christ brought to humanity is that of Love. Only through Love can we attain the strength to remember our superimposed inner flow with all of humanity.
In this way, the devotional and artistic yet also detailed descriptions of spiritual science provide the opportunity for us to resonate more and more with the
inner lives of spiritual beings, just as we resonate with the inner life of the artist when contemplating their artwork, and therefore how the flow of our inner states are modulated like ripples over the ideal waves of their spiritual activity. These concrete insights flow into our consciousness as moral imaginations and intuitions. We can discern these purposive patterns in the 7-year life stages, for example, which follow a clear trajectory of structured development, unfolding opportunities for new experiences and eventually new inner qualities and capacities through those experiences.

We can intuitively sense how the inner states of our life stages are attracted around certain patterns of development like the iron filings ordered by a magnetic field. These inner states were previously experienced as following a quite arbitrary and random trajectory and were generally ignored. But now we notice the patterns and sense how this attracted trajectory of our inner flow reflects the intuitive intents of concrete spiritual beings (including our own intents). By awakening to (remembering) these intuitive intents, we also gain the capacity to more consciously and freely participate in the unfoldment of our inner states. We no longer need to be helplessly dragged by sympathies and antipathies that we experience as the erratic movements of a fly, but can find the inner strength to creatively work into these deeper scales of intuitive intents and gradually get a conscious grip on our destiny. Only in this way can we experience spiritual freedom.