Having become acutely aware of our dissatisfaction, we begin to search for a reason for it. By examining our thoughts and actions, we discover that we are continually struggling to maintain and enhance ourselves. We realize that this struggle is the root of suffering. So we seek an understanding of the process of struggle. This is the Second Noble Truth taught by the Buddha, the truth of the origin of suffering.
From “The Four Noble Truths” in Cutting Through Spiritual Materialism by Chögyam Trungpa, pages 152–153