Real yogīs meditate upon the transcendental form of the Lord as He stands on the whorl of the lotus of their hearts, the jewellike nails of His lotus feet glittering.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
पद्भ्यां नखमणिश्रेण्या विलसद्भ्यां समर्चताम् । हृत्पद्मकर्णिकाधिष्ण्यमाक्रम्यात्मन्यवस्थितम्
padbhyāṃ nakhamaṇiśreṇyā vilasadbhyāṃ samarcatām | hṛtpadmakarṇikādhiṣṇyamākramyātmanyavasthitam
SB 4.8.50