What is the source of great writers' talent? Can writing skills be learned through effort or is it an innate ability?

Honestly I don't know. All I know is that when I'm on it's usually due to some inner feelings or something. I started getting irritated tonight because I haven't been on. I was pretty perturbed, but it seemed to do something. Since I had my inner conflict with myself things started flowing. I started doing what I think people who know me expected in the first, and if I'm wrong, I will throw my hands in the air and say “Maybe I'm not that good” but if my mind can stay like this. I'm about ready to blow it out the water.

I think you have to have a passion and creativeness. I think the skill can be learned though.