The ultimate purpose of an artist is to be honest about what they have experienced. Not to try to “educate” or to effect a political purpose or to sell someone on something. Not to adopt a voice. Not to gloss over or sheen over or shine over or superficially coat or change what one is saying to manifest some impression, but the only criterion should be: is this the honest-est possible expression of life experience?
But what then the place of imagination? To what extent is it honest to include that? One is trying to communicate an emotional and a mental reality, and imagination can assist with that. And one also has an imaginal reality — the experience of imagination itself — and clearly imagination is crucial for communicating that.
To be honest is to include all your doubts and worries, all your wonderings and wanderings, all your lose ends and threads, all the flaws, nicks, dents, and other imperfections of the thought process. These are not deflections or detractions from the main content: they are the main content.