The Simile of the Sun (2nd)Dutiyasūriyūpamasutta

“Mendicants, the dawn is the forerunner and harbinger of the sunrise.“Sūriyassa, bhikkhave, udayato etaṁ pubbaṅgamaṁ etaṁ pubbanimittaṁ, yadidaṁ—aruṇuggaṁ; In the same way, for a mendicant rational application of mind is the forerunner and harbinger of the arising of the seven awakening factors.evameva kho, bhikkhave, bhikkhuno sattannaṁ bojjhaṅgānaṁ uppādāya etaṁ pubbaṅgamaṁ etaṁ pubbanimittaṁ, yadidaṁ—yonisomanasikāro. A mendicant accomplished in rational application of mind can expect to develop and cultivate the seven awakening factors.Yonisomanasikārasampannassetaṁ, bhikkhave, bhikkhuno pāṭikaṅkhaṁ—satta bojjhaṅge bhāvessati, satta bojjhaṅge bahulīkarissati.

And how does a mendicant with rational application of mind develop and cultivate the seven awakening factors?Kathañca, bhikkhave, bhikkhu yonisomanasikārasampanno satta bojjhaṅge bhāveti, satta bojjhaṅge bahulīkaroti? It’s when a mendicant develops the awakening factors of mindfulness, investigation of principles, energy, rapture, tranquility, immersion,Idha, bhikkhave, bhikkhu satisambojjhaṅgaṁ bhāveti vivekanissitaṁ …pe… and equanimity, which rely on seclusion, fading away, and cessation, and ripen as letting go.upekkhāsambojjhaṅgaṁ bhāveti vivekanissitaṁ virāganissitaṁ nirodhanissitaṁ vossaggapariṇāmiṁ. That’s how a mendicant with rational application of mind develops and cultivates the seven awakening factors.”Evaṁ kho, bhikkhave, bhikkhu yonisomanasikārasampanno satta bojjhaṅge bhāveti, satta bojjhaṅge bahulīkarotī”ti.