I would liken the technique of yoga to the gold or silver or stone in Paul’s speech, but not in a dismissive way (I don’t think Paul is being dismissive either). I see yoga as an amazing means for personal well-being made by human design and skill. At its best it brings people very near to an understanding of themselves as people who are in God — living and moving and having their beings. But the means of salvation which is Paul’s proclamation, and, according to Paul, God’s command, is that we need to repent — turn around. I think among the plurality of yogis I know, this repentance is turning from trusting the technique that they can control to trusting the living God that gives them the breath that leads their focused movement.