In the start of the battle of the Bhagavad Gita, Arjuna loses resolve as he faces his teachers and relatives on the battle field. He argues that it would be better to be defeated in war than to kill his kin. Krishna, his cousin, charioteer, and later revealed to be an Avatara of Vishnu, reminds him of the warrior's dharma, to fight. Through Samkhya-Yoga, Krishna teaches Arjuna that all things perish, yet the soul can never be killed.