On chaturanga you really want to pin your elbows to your side. Once you get down about halfway to where you elbows are pressed into your ribs stay there no need to go any lower. Going lower puts a lot of stress on the shoulder.
Ashtanga Yoga Primary Series with Sammy Seriani. This poster illustrates the postures of the primary series Full color poster shows perfect alignment of postures. Ashtanga yoga invocation, in the original Sanskrit, with a translation. A great learni