Pronunciation: (mis'tu-siz"um), [key]
1. the beliefs, ideas, or mode of thought of mystics.
2. a doctrine of an immediate spiritual intuition of truths believed to transcend ordinary understanding, or of a direct, intimate union of the soul with God through contemplation or ecstasy.
3. obscure thought or speculation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.