The Bhagavad-gītā was revealed for the sole purpose of explaining these two principal points. One who understands them is eligible to begin spiritual life as a neophyte devotee. Śraddhā, or faith, is the first prerequisite in spiritual life and is described as synonymous with neophyte devotion. Thus Śrī Caitanya-caritāmṛta (CC Madhya 22.62) says,
By rendering transcendental loving service to Kṛṣṇa, one automatically performs all subsidiary activities. This confident, firm faith, favorable to the discharge of devotional service, is called śraddhā.