In this busy world, experiences of happiness are brief and fleeting, and inner peace eludes us. Negative states of mind, such as uncontrolled desire and hatred, cause innumerable problems for ourselves and others and prevent us from satisfying our deepest desires. Geshe Kelsang begins with an exposition of the famous teachings of the Buddha known as "The Four Noble Truths", which offer us a clear and simple solution to all our problems and lead us to the oasis of infinite peace that exists in our hearts. Next he concentrates in particular on how to overcome the problem of hatred by learning to cultivate patience and maintain it even in the most adverse circumstances.