The old religion said, he who does not believe in God is an atheist. Swami Vivekananda powerfully said this: Unless you take the first step, I am willing to change. Don't lie in bed thinking, should I get up or should I not get up? Jump out of bed immediately. This conviction, Arjuna lost all faith in himself.
Swami Sarvapriyananda summarizes the first chapter of the Bhagavad Gita. This series of talks unfolds the highest truths of Vedanta through the study of "The song of God".