प्रजापतिर्लोकानभ्यतपत्तेषां तप्यमानानाँ रसान्प्रावृहदग्निं पृथिव्या वायुमन्तरिक्षादादित्यं दिवः ॥ १ ॥
In plain words
Prajāpati focused his ascetic heat upon the worlds. From those heated worlds he drew forth their hidden essences: Agni from the earth, Vāyu from the atmosphere, and Āditya from the heavens.
Close to the Sanskrit
Prajāpati brooded upon the worlds. From those worlds being heated, he extracted their essences: Agni from the earth, Vāyu from the atmosphere, and Āditya from heaven.