<b>What four things should be given up?</b> Four floods: sensuality, desire for rebirth, views, and ignorance. <b>What four things make things worse?</b> Four yokes: the yokes of sensuality, desire for rebirth, views, and ignorance. <b>What four things lead to distinction?</b> Four kinds of unyoking: unyoking from the yokes of sensuality, desire for rebirth, views, and ignorance. <b>What four things are hard to comprehend?</b> Four kinds of immersion: immersion liable to decline, stable immersion, immersion that leads to distinction, and immersion that leads to penetration. <b>What four things should be produced?</b> Four knowledges: knowledge of the teaching, inferential knowledge, knowledge of encompassing, and conventional knowledge. <b>What four things should be directly known?</b> The four noble truths: suffering, the origin of suffering, the cessation of suffering, and the practice that leads to the cessation of suffering.