The Spiral Hand is seen in cave paintings and petroglyphs throughout the Southwest U.S. Many Reiki therapists use this image as a symbol of healing.
With #10 thread and a #7 steel hook, the piece will be 7.5x 11. However, by using doubled or tripled thread, or yarn even, you can get a bigger piece for a curtain or wall hanging.
You can also make in in tapestry crochet, using 2 colors and changing the the stitches to sc.
Here is the link: http://www.examiner.com/article/how-to-filet-crochet-a-spiral-hand-curtain-or-wall-hanging-metaphysical-image?cid=db_articles