what definition of invisibility spurs the narrator to return to social action

During his time underground, the narrator has attempted to look through himself, blurring the divisions of which categorize the world. He understands that he has spent his life justifying and vindicating the desires of others. He is truly invisible as no one ever wanted to know what he calls himself. Thus, the invisible man is Norton's destiny, a destiny he will never realize because of its invisibility. And the narrator himself no longer needs Norton or Jack or Bledsoe; he only needs to overcome the struggle of himself. The story is about voice and emergence and the victor in the race is the Invisible Man.