Chapter 01 includes in-depth explanation of the background of the Bhagavad Gita including the fundamental problem that Arjuna faced with on the battlefield and what led up to this problem. Thus we find this problem to be true to all human beings who find themselves in helpless situations.
Arjuna finally realizes he cannot solve his confusion by himself and in Chapter 02, he asks Bhagavan Krishna to please teach him. Thereafter, the rest of chapter two unfolds the entire teaching of Vedanta.
An Audio Course on Vedanta Texts- Bhagavad Gita: Bhagavad Gita (Chapter 1 & Chapter 2) by Swami Tattvavidananda Saraswati.