Noumenon(Gk)
From Theosopedia
(Gk.). The inner essence of things that is unknowable by reason or ordinary perception. This word was introduced by the philosopher Immanuel Kant who contrasted it to phenomenon and denotes a purely intellectual intuition. It is encountered in theosophical writings where it is mostly used in reference to the true essential nature of being as distinguished from the illusive objects of sense.
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