atman
3.The single absolute being pervading the universe and found within the individual; atman.
4.Atman who is one and immutable by nature seems to have assumed innumerable forms.
5.Mind is not self-luminous. It borrows light from the Atman or the Supreme Self.
6.The Katha-upanishad, through the story of Nachiketa, discussed death and the permanence of the soul (Atman).

