Verse 25

बभूवतुः स्वकार्यैकतत्परौ तेजसां निधी ।जगाम पिङ्गलो व्योम मुनिश्च विमलं सरः

In plain words

the two of them treasuries of splendor, each intent solely upon his own task: Piṅgala went to the sky, and the sage to a clear lake,