Verse 59

साक्षादयमहं विष्णुर्नीलमेघोदरद्युतिः ।सुपर्णपर्वतारूढः शङ्खचक्रगदाधरः

In plain words

I am, in very truth, Viṣṇu himself — my lustre like the belly of a dark raincloud — mounted upon the mountain that is Suparṇa, bearing conch, discus and mace.