[1150] Bhikkhus, if a bhikkhu, in dependence upon desire (chanda), obtains concentration (samādhi), obtains one-pointedness of mind (citta), this is called concentration due to desire (chandasamādhi). He generates desire, strives, arouses energy (vīriya), exerts his mind, and endeavors for the non-arising of evil, unwholesome states (dhammā) that have not yet arisen. He generates desire, strives, arouses energy, exerts his mind, and endeavors for the abandoning of evil, unwholesome states that have arisen. He generates desire, strives, arouses energy, exerts his mind, and endeavors for the arising of wholesome states that have not yet arisen. He generates desire, strives, arouses energy, exerts his mind, and endeavors for the persistence, the non-confusion, the increase, the expansion, the development, and the fulfillment of wholesome states that have arisen. These are called volitional formations of striving (padhānasaṅkhārā). Thus, this desire, this concentration due to desire, and these volitional formations of striving — this, bhikkhus, is called the basis of spiritual power (iddhipāda) endowed with concentration due to desire and volitional formations of striving.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.