
Isavasya (Isa) Upanisada

Its main purpose is to teach the essential unity of God and the world, being and becoming. It is interested not so much in the Absolute in itself ('Parabrahman') as in the Absolute in relation to the world ('Paramesvara'). It says that renouncing the world and not coveting the possessions of others can bring joy. The Isha Upanishad concludes with a prayer to Surya (sun) and Agni (fire).