Chapter 3 Jiva Jagat Isvara
3-5 Katha Upanishad
3-5-1 Katha 2.3.1
The world has arisen due to kArmic balance of the jivAs carried from the previous cycle of creation. The kArmic balance is in turn due to desire which propels action. Ignorance of Atma gives rise to action. The creation is compared to a tree and its root as Brahman. The branches represent the world consisting of dualities, e.g., heat, cold; pleasure, pain; birth, and death. Brahman is eternally pure, unchanging, and is therefore superior. The trunk is like subtle bodies of all creatures. It grows in strength due to desire represented by sprinkling of water. It has tender sprouts as sensory objects. Beautiful flowers represent good deeds like sacrifice, charity, and austerities. Various tastes are experiences of happiness and sorrow. The nests are the various lokAs beginning from satya loka (also called Brahma-loka) built by birds for living beings from Brahmaji downwards. The tree like world is unsteady and shaken by winds of desires. The leaves are karma kAnda of VedAs that perpetuates the world-tree. Brahman is the root and support of the universe. There is nothing beyond Him just like a pot does not transcend the clay.