enlighten

verb2

1. •
   To supply with light.

   • The sun enlightens the Earth.
2. •
   (figurative) To make something clear to (someone); to give knowledge or understanding to.

   • She tried to enlighten them about the rules of the program, but they remained belligerently and self-righteously ignorant.
   • Care to enlighten me, if you think I'm so benighted?