This is an open question.  A premise and a characteristic – these are two different things.

struggle?  humanity?  history?  culture?  voice?  passion?  artistic obsession?  source of strength?  inspiration?  movement?  what i intend to say?  what rings my bell?  something new?  effort?  determination?  egocentric concepts and thoughts?  knowing what i’m going for?  far more powerful than fun?  see through my mind?  how do i get better?  believable work?  why?