In plain words
The poet, to the Lord: O you who bring purity to souls bound in the world, O you who wear the garland of tulasi strands! O Lord, the first cause, who became the tortoise and lay in the deep sea! Though we are not able to say what the qualities and deeds your names reveal are like, are you not the bearer of the discus of whom the Sāma Veda [in the Chāndogya] speaks [as dwelling in the orb of the sun]?