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Just a theory on evolution. Not physical evolution, but spiritual, or whatever you want to term non-physical; consciousness.
Evolution involves increasing levels of awareness. At some point consciousness becomes aware of its surroundings, it becomes aware it's alive. At some point later still it becomes aware of itself; it is. Is it possible to exist and not be self-aware? Seems a silly question to ask, as silly as a resident of Flatland asking about the existence of its own world. Beyond self-awareness what is there. To look further beyond or further within. Why look at all. Why do plants yearn skyward toward the light. Why do people question.