Ajahn Karuṇadhammo describes the duty of the first Noble Truth—to fully understand dukka. Without this, our attempts to follow the path to the end of dukkha will be unsatisfactory. He describes two kinds of dukkha: that which is inherent in conditioned reality and which we cannot control, and dukkha which we can eliminate by training and relinquishment. He urges us to look closely at suffering to fully open ourselves to it before we get to the cure. This talk was offered on April 11, 2017 at Abhayagiri Buddhist Monastery.