Shaila Catherine gave the second talk in the five-week series "Four Noble Truths." This talk explores the causes of suffering (in Pali dukkha), and explains how conditioned mental and sensory experiences are unsatisfactory and stressful. Craving causes suffering when our perceptions are accompanied by delight and lust. Practicing mindfulness reduces suffering, because when we are present we experience things as they actually are, and do not crave something different.