The Bhagavad-gita is an ancient Indian text that answers questions about life and existence. It is a summary of Hindu Vedic philosophy and is considered by many to be the best book on the topic of spiritual wisdom.

This classic text of religious literature is set on a battlefield, where a great warrior is about to fight against his friends and relatives.

In the midst of this battle, the warrior asks himself many questions about the meaning of life and the purpose of existence.

It's a great Android application that you can use to ponder upon.