Bhikkhus, for the full understanding of passion, desire, and attachment, four qualities should be developed. What are these four?
Here, bhikkhus, a bhikkhu develops the basis of psychic power endowed with collectedness arising from |aspiration::a goal, an interest, an objective, i.e. a wholesome motivation [chanda]| and accompanied by intentional effort;
the basis of psychic power endowed with collectedness arising from energy and accompanied by intentional effort;
the basis of psychic power endowed with collectedness based on |[purification of] mind::purification of heart [citta]| and accompanied by intentional effort; and
the basis of psychic power endowed with collectedness based on |investigation::consideration, reflection, and examination [vīmaṃsā]| and accompanied by intentional effort. For the full understanding of passion, desire, and attachment, these four qualities should be developed.