Beyond these Gross Physical references, we drift to other cosmological and metaphysical constructs (Astral, Causal, and other frames of reference Within and Without the Creation) that by design remain largely beyond the grasp of this Age (and/or this Realm)... available largely only by conjecture, imaginings, (or direct insights *which remain uncommunicable via the "localized consciousness" of the Age or Realm by design.)
U gave such a wonderful thoughtful thread that i thought i would initially respond to just one small part of it. There is a fine line between imagination and reality. Because the imaginative process is the first step in causation of the reality as we know what exists in the physical. It becomes more real in the sense that we share mutual expression and experience. Having u with us is one form of attempt to make contact and share frames of reference that transcend physical reality and takes us to places where we drift towards merging in a metaphysical oneness. Focus is the key that brings higher stirrings to conscious awareness and brings us out of restless turbulence in the frantic thought process. God created this creation out of thought and a focus of thought that manifested as us. So we r reversing that process back to our creator when we practice communion during meditation, absorption and introspection.
Love Jitendra