When you're creating something, artistically, do you enter into an "artist trance"?

I find that when I’m writing song lyrics, or music, that I sort of space out, perhaps using something unconscious, until I’m finished. I almost always have to go back with a more logical eye and finish/fix a few things, but the majority of my creative force seems to come when I’m in some sort of “artist trance.” Has anyone else experienced this in their forays into the arts?

Hmm…