To see the light Meaning, Definition & Usage

Definitions
  1. to come into the light; hence, to come into the world or public notice; as, his book never saw the light. also, see the light of day; (b) to come to understand (sometimes used ironically, said of a person who professes to change his opinion after he has been convinced that it will be in his own interest if the facts are different from his initial beliefs)

Webster 1913