Thus he fixed his mind, perfectly engaging it by linking it in devotional service [bhakti-yoga] without any tinge of materialism, and thus he saw the Absolute Personality of Godhead along with His external energy, which was under full control.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
भक्तियोगेन मनसि सम्यक् प्रणिहितेऽमले । अपश्यत्पुरुषं पूर्वं मायां च तदुपाश्रयाम्
bhaktiyogena manasi samyak praṇihite'male | apaśyatpuruṣaṃ pūrvaṃ māyāṃ ca tadupāśrayām
SB 1.7.4