Śrīmad-Bhāgavatam 3.28.12
SB 3.28.12
Open the full passageSanskrit
yadā manaḥ svaṁ virajaṁ yogena susamāhitam kāṣṭhāṁ bhagavato dhyāyet sva-nāsāgrāvalokanaḥ
Translation
When the mind is perfectly purified by this practice of yoga, one should concentrate on the tip of the nose with half-closed eyes and see the form of the Supreme Personality of Godhead.