Ādi Plane
From Theosopedia
Ādi is a Sanskrit word meaning “first” and in theosophy a generic term for all the “First Men,” that is, the first speaking races. Helena P. BLAVATSKY suggests that the name “Adam” is derived from ād. In her book A Study in Consciousness (p. 4), Annie BESANT lists Ādi Plane, together with Anupādaka Plane as the field of Logoic manifestation. She writes that the two highest planes may be conceived of as existing before the solar system is formed. The highest, the Ādi, consisting of so much of the matter of space — symbolized by points — as the LOGOS has marked out to form the material basis of the system. See also PLANES IN THEOSOPHY.