Bowguy67 has a good description above, and I don't think anything I’m about to say would conflict with it. I use the rotational draw as described by Arne Moe in his video:
There is some subtlety in Arne's description. I thought I was doing it correctly for about a year, but when I went back and reviewed his video again, I noticed some things I had overlooked before and had to change some things.
Some of you will look at his video and some of the things I write about it and say that it is too complicated; but after you learn it, you don't think about it when you're doing it, anymore than you would think about a golf swing or shooting a shotgun at a flying duck while you're doing those things, even though getting to that point requires some thought and practice.
The goal of the draw is bone on bone alignment, consistency from shot to shot, and having the arrow go where you're looking, whether you're aiming instinctively or by some outside reference.