When I do constrain myself to the keyboard and "have at it", word by word, I feel some underlying current that suprisingly jumps out my fingers. It's a fantastic sensation, but it's word by word, sometimes character by character. When a genuine writing spurt comes along, it's a high that only a writer can experience. It's what you ache for and what keeps you spurred to hack out any little thing you can even faintly call writing.
I am determined to hammer, plunk, drone, and peck until something, someday, somehow manifests itself to be qualified to be published. I have no real idea what that item might be, a poem, a memoir, a short story, a novel, only writing it will tell.