Verse 3

अन्तरेव शशामास्य क्रमेण प्राणसंततिः ।ज्वालाजालपरिस्पन्दो दग्धेन्धन इवानलः

In plain words

Within himself, by degrees, the very continuity of his breath came to rest, as the flickering web of flame dies down in a fire once its fuel is burnt.