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No word in our language - not even "Socialism" - has been employed more loosely than "Mysticism." The history of the word begins in close connexion with the Greek mysteries. A mystic is one who has been, or is being, initiated into some esoteric knowledge of Divine things, about which he must keep his mouth shut.

"Christian Mysticism: The Bampton Lectures". Book by William Ralph Inge, Lecture I, www.gutenberg.org. 1899.
No word in our language - not even Socialism - has been employed more loosely than Mysticism. The history of the word begins in close connexion with the Greek mysteries. A mystic is one who has been, or is being,