UPANISHADS

 Supposed to have been written, developed sometime between 600 to 300 B.C., Upanishads are very important treatises of Hindu tradition. They deal with the whole of universe and its unchangablity in the sense of ultimate reality. According to Upanishads, physical existence of all creatures is simply a visible and perishable form or embodiment of the essence of life i.e. Atma which never dies. Atma comes from Bramhah, the ultimate universal unit and, thus, the aim of life is to get the Atma reunited with Bramhah.