I wonder why a Christian would be participating in Yoga. I do not doubt the physical aspect of it is very good, but if the religeous aspect is involved, then I would say get out of it. Because you cannot serve both God and Satan. Scripture is quite plain about that. It is a dangerous thing to play with. You may think you are strong enough to not the religeous aspect of it to influence you, but the fact is no matter what you get yourself involved with that is no Godly, it will drag you down and lead you astray from God.