by Morley Evans
Wikipedia tells us:
In Hinduism, Brahman (//; ब्रह्मन्) connotes the highest Universal Principle, the Ultimate Reality in the universe. In major schools of Hindu philosophy, it is the material, efficient, formal and final cause of all that exists. It is the pervasive, genderless, infinite, eternal truth and bliss which does not change, yet is the cause of all changes. Brahman as a metaphysical concept is the single binding unity behind the diversity in all that exists in the universe.
Brahman is a Vedic Sanskrit word, and it is conceptualized in Hinduism, states Paul Deussen, as the "creative principle which lies realized in the whole world".Brahman is a key concept found in the Vedas, and it is extensively discussed in the early Upanishads. The Vedas conceptualize Brahman as the Cosmic Principle. In the Upanishads, it has been variously described as Sat-cit-ānanda (truth-consciousness-bliss) and as the unchanging, permanent, highest reality.[note 1][note 2]
Brahman is discussed in Hindu texts with the concept of Atman (Soul, Self), personal,[note 3] impersonal[note 4] or Para Brahman,[note 5] or in various combinations of these qualities depending on the philosophical school. In dualistic schools of Hinduism such as the theistic Dvaita Vedanta, Brahman is different from Atman (soul) in each being, and therein it shares conceptual framework of God in major world religions. In non-dual schools of Hinduism such as the monist Advaita Vedanta, Brahman is identical to the Atman, Brahman is everywhere and inside each living being, and there is connected spiritual oneness in all existence.