I don’t practice yoga, but just thought this is an interesting article:
from BBC News Magazine: Does doing yoga make you a Hindu?
For many people, the main concern in a yoga class is whether they are breathing correctly or their legs are aligned. But for others, there are lingering doubts about whether they should be there at all, or whether they are betraying their religion…
A fairly lengthy article, appears to be well researched.
It includes a brief exposition of PraiseMoves, a Christian adaptation of yoga. I disagree with the founder’s disapproval of tranquility (emptying your mind), but I suppose her approach has some merit.