Within the pages of the Bhagavad Gita lies the highest wisdom that can make man realise that he is not different from God, bat he is God. Lord Krishna saya that once a person is free from the ego, he will realise this truth, and the truth will free him from sorrows, diseases, old age and even death and make him immortal. Forthis, no change is required in one's lifestyle or routine; all that is needed is a different way of thinking.