ADVAITA VEDANTA: THE SUPREME SOURCE* by David Paul Boaz

 In the Rigveda, the oldest of the Vedas (circa 1500 to 1200 BCE) arises the first of humanity’s historical teachings on this Absolute nondual Supreme Source of Reality. Thus in the Aitareya Upanishad, according to Shankara, Brahman is the Suprme Source of what is when all subject-object dualism is transcended. Brahman is both the divine source or Base of what is, and as the Atman, the in-dwelling immediate presence (vidya) of that source in manifested reality and in the human bodymind, always at the spiritual heart (hridyam) of self-conscious beings.