Śrīmad-Bhāgavatam · Text 3.6.3
Who is speaking and story frame
सोऽनुप्रविष्टो भगवांश्चेष्टारूपेण तं गणम् ।
भिन्नं संयोजयमास सुप्तं कर्म प्रबोधयन् ॥ ३ ॥
so ’nupraviṣṭo bhagavāṁś
ceṣṭārūpeṇa taṁ gaṇam
bhinnaṁ saṁyojayām āsa
suptaṁ karma prabodhayan
Thus when the Personality of Godhead entered into the elements by His energy, all the living entities were enlivened into different activities, just as one is engaged in his work after awakening from sleep.
Read Śrīla Prabhupāda's purport on Vedabase.io