This talk by Shaila Catherine is the first in the speaker series "Doorways to Insight." Shaila Catherine describes the importance that is placed on recognizing and contemplating impermanence. This is one of the three main characteristics that we observe in insight meditation practices. We see and know that things change. Everything is changing—thoughts, emotions, feelings, perceptions, sensations, tastes, and emotions. But when we don't see the impermanence of things, we tend to grasp and cling to them. We tend to want to make them to last, and thereby we identify and become attached. As a result of attachment, we suffer, because they are changing anyway. Can we see beyond things that change, and realize what might be called changeless or deathless, to awaken with insight, to realize nibbana?