Being easy to admonish and having good friends. <em>What two things are helpful?</em> <em>What two things are hard to comprehend?</em> The causes and reasons for the corruption of sentient beings, and the causes and reasons for the purification of sentient beings. <em>What two things should be produced?</em> Two knowledges: knowledge of ending, and knowledge of non-arising. <em>What two things should be directly known?</em> Two elements: the conditioned element and the unconditioned element.