2.31
“Bhikkhus, there are two qualities that are conducive to wisdom. Which two? |Tranquility::serenity, stilling, calming, peace, mental unification [samatha]| and |insight::seeing clearly, penetrating internal vision [vipassanā]|.
Bhikkhus, when tranquility is developed, what purpose does it serve? The mind is developed. When the mind is developed, what purpose does it serve? |Passion::intense desire, strong emotion, infatuation, obsession, lust [rāga]| is abandoned.
Bhikkhus, when insight is developed, what purpose does it serve? Wisdom is cultivated. When wisdom is cultivated, what purpose does it serve? |Ignorance::fundamental unawareness or misunderstanding of the true nature of reality, not experientially understanding the four noble truths [avijjā]| is abandoned.
Bhikkhus, a mind defiled by lust is not liberated, and wisdom defiled by ignorance is not cultivated. Thus, bhikkhus, from the fading of lust comes |liberation of mind::emancipated by mind/heart, samādhi obtained from fruition [cetovimutti]|, and from the fading of ignorance comes |liberation by wisdom::emancipation by insight [paññāvimutti]|.”