The voices in my head have names. No, really. They do.
I hear them as loudly and clearly as I hear anyone who talks to me from outside my own mind. My characters talk to me in their own voices. They have their own accents and a tempo to their speech. They are fully formed, very real, people… who just happen to exist only in my head (and then by extension in my works of fiction). It’s my madness. Does that mean that I can’t distinguish fantasy from reality? No. I just have characters who tell me their stories… and I write those stories down.