Dutiyasamādhi sutta: Immersion (2nd)

“Mendicants, these four individuals are found in the world. What four?

One individual has internal serenity of heart, but not the higher wisdom of discernment of principles.

One individual has the higher wisdom of discernment of principles, but not internal serenity of heart.

One individual has neither internal serenity of heart, nor the higher wisdom of discernment of principles.

One individual has both internal serenity of heart, and the higher wisdom of discernment of principles.

As for the individual who has serenity but not discernment: grounded on serenity, they should practice meditation to get discernment. After some time they have both serenity and discernment.

As for the individual who has discernment but not serenity: grounded on discernment, they should practice meditation to get serenity. After some time they have both discernment and serenity.

As for the individual who has neither serenity nor discernment: in order to get those skillful qualities, they should apply extraordinary enthusiasm, effort, zeal, vigor, perseverance, mindfulness, and situational awareness. Suppose your clothes or head were on fire. In order to extinguish it, you’d apply extraordinary enthusiasm, effort, zeal, vigor, perseverance, mindfulness, and situational awareness. In the same way, in order to get those skillful qualities, that individual should apply extraordinary enthusiasm … After some time they have both serenity and discernment.

As for the individual who has both serenity and discernment: grounded on those skillful qualities, they should practice meditation further to end the defilements.

These are the four individuals found in the world.”