[530] "And what, bhikkhus, is the nutriment (āhāra) for the arising of the unarisen energy (vīriya) factor of awakening (bojjhaṅga), and for the development and fulfilment of the arisen energy factor of awakening? There are, bhikkhus, the element (dhātu) of initiative, the element of endeavour, and the element of exertion. Frequently giving wise attention (yoniso manasikāra) to these: this is the nutriment for the arising of the unarisen energy factor of awakening, and for the development and fulfilment of the arisen energy factor of awakening."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.