M. Advaita Vedanta’s perspective is better seen from the top down rather than from the bottom up. Consciousness or awareness can be considered (there is a consensus on this) as a ‘fundamental ‘property’ of (or pointer to) reality’, not reality itself, which is unfathomable and indescribable. It permeates every apparently external phenomenon, which is thus an expression or manifestation of Consciousness. Accordingly, a neuron, an electron, is a manifestation of Consciousness – ‘the One without a second’. Alternately, neurons, atoms, etc. are embedded in Consciousness or reality.
PB. I think the best words you can use to characterize reality are awareness/consciousness, existence/beingness and bliss/love. However, I wouldn’t identify reality with consciousness, the other two concepts, or all three together. They are just the purest manifestations of reality that we can identify. True reality is not a thing or concept, it is beyond definition.
But yes, I would agree that neurons, electrons etc. are phenomena of consciousness, as are these words and the bodies and minds that write them.
M. Metaphysical truth is sometimes called apperception, or direct supramental perception, and it is non-transferable. Nicholas of Cusa put it this way: “The highest wisdom is this, to know… how that which is unattainable may be reached or attained unattainably”. Metaphysics (philosophia prima, or first philosophy of medieval times) is not science, and its truths are often dressed as paradoxes, analogies, and metaphors; they are not meant to convince anyone who is not open to them.
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A metaphysical truth appeals to intuition; it is an experience, or knowledge-experience… It is not speculation and is not amenable to subject-object relationship or distinction.
M. (to another participant) Did you look up the word ‘rishi/s’? It means ‘sage’ – Swami Vivekananda described Rishi-s as Mantra-drashtas or “the seers of thought”. He told— “The truth came to the Rishis of India — the Mantra-drashtâs, the seers of thought — and will come to all Rishis in the future, not to talkers, not to book-swallowers, not to scholars, not to philologists, but to seers of thought.” (From Wikipedia).
Hardly does a minute go by when a student of Advaita does not hear an analogy. The subject being so abstruse and abstract, the teacher ostensibly to make things easy to understand (सुख बोधाय), resorts to the method of using an “analogy.” Much like in Theoretical Physics and Quantum Physics, the concepts in Advaita too are usually counterintuitive and metaphor is a powerful tool to help drive home a difficult idea. The danger in using the metaphor is that it, more often than not, lulls the student with a sense as though s/he “got” it (the Oneness of All That-IS). Perhaps because of that, it is not seldom that we find even an advanced student of Advaita being tempted to extend a metaphor beyond the intended point and make his/her own inferences from such a wrong projection. (I am frequently asked questions on ‘reflected Consciousness,’ ‘Witness-Consciousness’ etc. based on such improper extensions).
We all know that the shruti predominantly adopts the model of adhyAropa–apavAda (superimposition – sublation) in imparting the incommunicable Advaita message. There are other types of models and prakriyA-s also available in the scripture and tradition but they do not seem to be as popular. The adhyAropa–apavAda model superimposes an “imagined” or illusory creation on the really real Reality and as the student ingests the core Advaitic teaching, the superimposition is sublated. We find, however, that the shruti spends more time dealing with diverse aspects of the superimposed creation (birth, sustenance, death, action, fruits of action, rebirth etc.), the sublation being left to the ingenuity of the student as s/he reaches her/ his final understanding. One teacher estimates that Shankara in general devotes 90 percent of his time in most of his works on expiation of the Advaita doctrine and the attendant practices, leaving only a minor part on sublation and the outcome of the practices. This situation in some quarters has given rise to an insistence that the shruti teaches creation and that we have to take only the shruti vAkya-s and Shankara’s commentary on them as the pramANa (reference standard) for understanding the Advaita message forsaking other methods and vAkya-s in the scripture. Is that the intention of shruti? What is the final position of the shruti about creation from an Advaita perspective? 
You do not have to have been studying Advaita for very long to know that the words Atman and brahman both refer to the non-dual reality (even if are not yet convinced of this reality). After all, one of the four, particularly well-known mahAvAkya-s is ‘ayam Atam brahman’ – this Atman is brahman.