Books s are the treasure of knowledge. I have read many books but I like Bhagwad Gita most. It is a part of the Mahabharat. Lord Krishna through this Bhagwat Gita preached Arjuna Arjuna did not like to fight in the battle-field. Lord Krishna gave him the message of Niskam Karm. He told him that a man must go on doing his duty without any motive to fulfil his desires. He told Arjuna that the soul is immortal whereas this body is perishable. Thus, he should not get worried about the death of Drona and Bhishma. Thus, immortality of soul has been very well presented in the Gita. It has rich philosophy. It gives us peace of mind.