Those two are just wild guess.

more context would definitely help.

Enlightenment, etc. very right, but check the context, for if you're talking Bible, it's revelation (possibly plural) or apocalypse. In any case, it's cool stuff.

Of course, it depends on the scenario.

Chinese term (edited): ��ʾ

启发 = arouse, inspire, enlighten eg arouse class consciousness He often inspires us to ponder over questions this way. You should teach with the elicitation method (启发式). I derived inspiration from his working method. The old scientist's lecture greatly inspired us. an enlightening lecture
指示 = 1 indicate, point out eg indicate the direction of advance 2 instruct eg instruct the troops to set out at once 3 directive;instructions eg give instructions
领悟 = comprehend; grasp