Some South Indian versions of the Brahma Upanishad manuscripts begin here. As Purusha, Brahman has four dwellings or seats which are the navel, the heart, the throat, and the head. From these emanate the four aspects through which Brahman is effulgent. These are the state of wakefulness representing God Brahma; the state of dreaming which denotes God Vishnu; the state of dreamless sleep that is Rudra's form; and the transcendental imperishable state of Turiyam in which Brahman is supreme.