US-P15.043ab ।US-P15.043cd ॥
In plain words
What has no light of its own becomes visible by meeting what is light by nature. So the claim that light itself is something the sun produces — that statement is false, and this is exactly why.
Close to the Sanskrit
Manifestation would belong to the non-luminous, from contact with that whose nature is light; but 'light would be an effect of the sun' — such a statement is indeed false, for this reason.