(Sanskrit) Literally, "soundless," derived from an (not) ahat (sound). The chakra or energetic center related to the heart. In the Bible, it is called the Church of Thyatira.
"Take everything from each moment, because each moment is a child of Gnosis, each moment is absolute, alive and significant. Momentariness is a special characteristic of the Gnostics. We love the philosophy of momentariness."