Bala

Strength. Bala designates both physical energy and spiritual power. In the Haṭha Pradīpikā, correct yoga practice confers bala (strength), vṛddhi (growth), and ārogya (health). In the Bhagavad Gītā, bala is counted among Kṛṣṇa’s divine attributes (BG 10.31). It is not brute force but the vitality that arises when prana flows unobstructed.