Three elements: sensuality, form, and formlessness. <em>What three things should be realized?</em> Three knowledges: recollection of past lives, knowledge of the death and rebirth of sentient beings, and knowledge of the ending of defilements. So these thirty things that are true, real, and accurate, not unreal, not otherwise were rightly understood by the Realized One. <em>What three things should be developed?</em> Three kinds of immersion. Immersion with placing the mind and keeping it connec