Agastya’s Instruction on Bhakti and Mantra-Siddhi; Descent to Pātāla and the Hearing of Vaiṣṇavī Kathā
भक्तेस्तु लक्षणं ज्ञात्वा त्रिविधाया महामते / यो यतेत नरस्तस्य सिद्धिर्भवति सत्वरम्
bhaktestu lakṣaṇaṃ jñātvā trividhāyā mahāmate / yo yateta narastasya siddhirbhavati satvaram
O great-minded one, having known the marks of the threefold bhakti, the man who strives in it swiftly attains siddhi.