 Theistic mystics sometimes speak as though they have the awareness of being fully absorbed into God or even becoming identical to God. Examples are the Islamic Sufi mystic al-Husayn al-Hallaj (858–922) proclaiming “I am the Real” (see Schimmel 1975, chap. 2) and the Jewish Kabbalist Isaac of Acre (b. 1291?) who wrote of the soul being completely absorbed into God “as a jug of water into a running well” (Idel 1988, 67). The Hasidic master Rabbi Shneur Zalman of Liadi (1745–1812) wrote of a person as a drop of water in the ocean of the Infinite with an illusory sense of individual “dropness.” The Christian mystic Meister Eckhart (c. 1260–1327/8) claimed that we and God share the same being (esse) supplied by a transcendent Godhead (Eckhart 2009, 109). It is still controversial, however, as to when such declarations are to be taken as assertions of true identity and when they are hyperbolic variations on descriptions of union-type experiences. Shankara’s Advaita gives a nontheistic example: our “essence” (atman) is identical to the only reality there is (Brahman) — there is a nonduality (a-dvaita) of all essences.