Thoughts on Yoga

I read in an article on parenting in the Rocky Mountain News yesterday that one thing to help bond your family is doing Yoga together.

So, it seems Yoga is everywhere. I've heard it touted time and again by the media as well as acquaintances. I even recall hearing that they wanted to institute it in the public schools up in one of the mountain towns.

Can you really take the Eastern thought out of Yoga? So much of the "empty your mind" concept seems to be essential to these supposed benefits, but its just not a biblical concept. God doesn't tell us to empty our mind...which I believe can open us up to negative spirtual influences. God wants our minds full of Him.

Is there a way to take the positioning of Yoga and make it beneficial physically without the direct link to the religious emptiness?