I've done the first stages on a couple of pieces:
You finish up by re-inking the contour lines in the foreground and then adding some hatching and a little white gel pen outlining. So now I have that part to do.
What does it all have to do with healing? It was very freeing, first there was no worry about perspective, correctness, or whether or not the product looked like the subject. Secondly, many stages of the process were meditative and I spent time out of time just focusing and breathing. Finally, as with all art work, the inner artist shows up and makes choices about what to draw, what to emphasize, how to organize, what colors to use, etc. So it leads towards having a personal style and finding one's voice.