ब्रह्मन् Brahman, in Hindu philosophy, is the ultimate reality, the infinite and eternal source of all existence, transcending time, space, and all material forms. As a concept, Brahman is central to various schools of thought, particularly Vedanta, where it is considered the absolute, unchanging reality underlying the universe, with everything in existence being a manifestation of this divine essence. While Brahman is often described in abstract, impersonal terms, it can also be personified and worshipped as the supreme deity in different forms, such as Vishnu, शिव Shiva, or Devi, reflecting the belief that all gods and goddesses are expressions of the one, all-encompassing Brahman.