Sexuality and spiritual experience have traditionally been linked in the literature of mysticism. Religious ecstasy seems strikingly similar to erotic excitement in the accounts of saints and holy people who have spoken of enlightenment- knowing ultimate reality, or in their usual term, God- in language that resorts to sexual imagery. Such images, they said, were the best they could find to describe an otherwise indescribable experience. Such terms as rapture, passion, union and ravish occur frequently.

 John White (Kundalini: Sex, Evolution, and Higher Consciousness)