While it is almost conventional to view it is a separate text, it is in fact a part of the Mahabharata, and relays the teachings of Krishna to Arjuna. The occasion for these teachings was furnished by the great war between the Kauravas and the Pandavas, who are also related to each other. As the battle is about to begin, Arjuna, one of the five Pandavas, throws down his bow and arrow, and confesses his inability to kill his own cousins and kinsmen, as well as those revered teachers who had been the common tutors of the Kauravas and Pandavas. Krishna then delivers an oration, urging Arjuna to perform his duty, to be the warrior that he is, and it is these teachings that are encapsulated in the Bhagavad-Gita, the "Song of the Lord". .
Devotion, or love of God, is a renowned way of the saints and sages who could speak to God as one could speak to a human being. Always, in most of the religions, God has remained a distant object of reverence and obedience to divine law. In Hinduism, the religion comes to the homes of people and becomes a part of the daily life of the individual; and it becomes a living feature in the world only when God becomes something vital in one's daily life; - for religion is love of God. The daily contact that we inwardly establish with God is religion. Our personal relationship with what really is; is religion. This is what the Puranas and the Gait emphasize. They focus on the concept of Theism or worship of a personal God. This personal God is seen as the creator, preserver and the destroyer of the world. Also, he/she is believed to have supremacy over all other Gods. Various manifestations include worshiping of idols in temples, religious festivals and processions and pumas. Also, essence of Karma Yoga can be seen in both scriptures. In Gait, Krishna teaches us to do actions without expecting any rewards from it. "Krishna is understood as recommending that we must fulfill our duties, but never with an eye to being rewarded for our activities".
