Universal soul is one of the main Keystone of the philosophy and the thought of the Upanishad. Brahma satyam Jagat Mitya Jeevo Bramanah Parah talks about the impermenance of the body and its existence.
Chandragupta Maurya was the founder of the Mauryan empire. In Greek and Latin accounts he is also mentioned as Sandrocuttos. It is believed that Chandragupta Maurya adopted Jainism and became an ascetic under the Jain saint Bhadrabahu.