When did consciousness first appear? Initially it was thought just in humans, then primates, mammals, birds, and now evidence is found in the simplest of organisms. This guide follows the development of consciousness through the human life stages, before tracing how it presents itself in mammals, birds, fish, and other creatures down the phylogenetic tree. Different philosophical and psychological theories, approaches, and beliefs are investigated and integrated into a wholistic view of what consciousness is, what it's evolutionary benefits are, and how different levels of awareness can be experienced through meditation and spiritual practices.
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