If you're a fiction writer, though, I can tell you how to let people talk through you. Listen. Just be quiet, and listen. Let the character talk. Don't censor, don't control. Listen, and write.
Ursula K. Le GuinAll knowledge is local, all truth is partial. No truth can make another truth untrue. All knowledge is part of the whole knowledge. Once you have seen the larger pattern, you cannot go back to seeing the part as the whole.
Ursula K. Le Guin