[42] The meaning of energy (vīriya) is to be directly known (abhiññeyya). The meaning of energy as root is to be directly known. The meaning of energy as footing is to be directly known. The meaning of energy as endeavor (padhāna) is to be directly known. The meaning of energy as accomplishment (ijjhana) is to be directly known. The meaning of energy as resolution (adhimokkha) is to be directly known. The meaning of energy as exertion (paggaha) is to be directly known. The meaning of energy as establishment (upaṭṭhāna) is to be directly known. The meaning of energy as non-distraction (avikkhepa) is to be directly known. The meaning of energy as seeing (dassana) is to be directly known.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.