Śrīmad-Bhāgavatam · Text 2.1.27
Who is speaking and story frame
द्वे जानुनी सुतलं विश्वमूर्ते-
रूरुद्वयं वितलं चातलं च ।
महीतलं तज्जघनं महीपते
नभस्तलं नाभिसरो गृणन्ति ॥ २७ ॥
dve jānunī sutalaṁ viśva-mūrter
ūru-dvayaṁ vitalaṁ cātalaṁ ca
mahītalaṁ taj-jaghanaṁ mahīpate
nabhastalaṁ nābhi-saro gṛṇanti
The knees of the universal form are the planetary system of the name Sutala, and the two thighs are the Vitala and Atala planetary systems. The hips are Mahītala, and outer space is the depression of His navel.
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.