Vīrya

“Virility,” “vital energy,” “valor.” In the Yoga Sūtras (II.38), vīrya is the energy conserved through brahmacarya — continence. Not limited to sexual energy but encompassing all vital force: clarity, vigor, spiritual impetus.

Brahmacaryāt prātilabhāt vīryam — “by establishing continence, vital energy is obtained.” Vīrya is also one of the five spiritual faculties (indriya) in Buddhism: persevering energy that drives practice. Without vīrya, will weakens and practice stagnates.