The Bhagavad-Gita is the most directly religious work, containing as it does the teaching of the god Vishnu through his avatar Krishna, but the other two texts include direct participation of gods (an...The Bhagavad-Gita is the most directly religious work, containing as it does the teaching of the god Vishnu through his avatar Krishna, but the other two texts include direct participation of gods (and their avatars) in the stories. Characters need to be the best they can be (following their individual dharma) in the Varna and Jat into which they were born in order to move up the hierarchy in their next reincarnation.