Internal is the struggle that occurs within a character’s mind.

Internal conflict is a struggle that occurs within a character's mind. This term refers to an internal struggle a character can go through. They are really important for characterization because they make the characters more sympathetic

learning how to embrace the effects of colonialism is one of the central ideas of the play.

impartial means: treating all rivals or disputants equally; fair and just.

i would say that impartial is agreeing with something, because impartial means to treat your rivals, arguments, and reasoning equally and fair. so if you rival says something, agreeing on it means you did the impartial.