The Bhagavad Gita opens by calling Kurukshetra dharmakshetra, the field of dharma, and the whole conversation that follows is about what that word requires. Arjuna, looking at the army opposite and recognising his teachers and cousins in it, puts down his bow. Krishna's answer takes the length of the text and moves through several kinds of argument: that the self is not what dies, that action performed without attachment to its results does not bind, that devotion to God is available to anyone regardless of birth, and that Arjuna's own duty as a warrior is not something he can decline on the grounds of feeling. The setting is essential to the argument rather than decorative. The most influential statement of Hindu ethics is delivered between two drawn up armies, minutes before a battle, to a man who does not want to fight, and it does not tell him to walk away.
Later readers have taken the field in different directions. Some treat the war as literal history, some as an allegory of the struggle inside a single person, and modern figures including Gandhi read it primarily in the second sense while drawing very different practical conclusions from it. The atlas records the site as the tradition holds it and leaves the reading of the text to the traditions that read it.