They are thinking that they are this body, and they are fighting. And everywhere it is going on: "I am this body." Cats and dogs are fighting. So actually, we are not this body. That is knowledge. Therefore Bhagavad-gītā begins when Arjuna was thinking in terms of his body that he was declining to fight in terms of body. "Kṛṣṇa, they are my family members, my brothers, my grandfather, my nephews. How can I kill them?" So therefore Kṛṣṇa, when Arjuna accepted Kṛṣṇa as his spiritual master... Śiṣyas te 'haṁ śādhi māṁ prapannam: (BG 2.7) "Kṛṣṇa, now we are talking like friends, but that will not make a solution, because friendly talking useless waste of time. Let us talk seriously. So I accept You as my spiritual master." Śiṣyas te 'haṁ śādhi māṁ prapannam. "Now you teach me."
So this is the process of taking lessons. Just like Mahārāja Parīkṣit also trying to take lesson from the learned saintly persons there. At last it was settled that "Whatever Śukadeva Gosvāmī will say, that will be accepted. That will be accepted." So therefore Śukadeva, after being questioned by Mahārāja Parīkṣit, Śukadeva Gosvāmī is answering, varīyān eṣa te praśnaḥ (SB 2.1.1). He inquired. Parīkṣit Mahārāja inquired. He was a devotee of Lord Kṛṣṇa from the very beginning. Because Pāṇḍava family, they were all Kṛṣṇa's devotee, so Parīkṣit Mahārāja also was a devotee from his childhood. He was worshiping the Deity of Kṛṣṇa. That was his plaything. Just like Mirabai had kṛṣṇa-mūrti. So those who are born devotees, their inclination is to... That is mentioned in the Bhagavad-gītā, śucīnāṁ śrīmatāṁ gehe yoga-bhraṣṭo 'bhijāyate (BG 6.41).