bhāvanā-bala: s. paṭisaṅkhāna-bala.

Buddhist Dictionary, Manual of Buddhist Terms and Doctrines, by NYANATILOKA MAHATHERA

bhāvanā-bala[bhāvanā-bala] power of self culture. Bhāvanā-bala is the power to increase the effect of meditation. It comprises development of the factors of enlightenment (bodhyaṅga), namely, mindfulness, investigation of the doctrine, energy, rapture, tranquillity, concentration and equanimity. It inculcates self-discipline, self-control, self-elevation and self-illumination.

Buddhānusmṛti - A Glossary of Buddhist Terms

AS. I. 147, 541.