Christianity and Meditation

I was reading a yoga magazine once and it had a section about Christian yoga. I guess the premise is that meditation can make room for the devil. Christian yoga is only different in that assures it's members that they aren't making way for the devil and that they are practicing yoga with other Christians. I personally don't believe this is nessecary. I think it is up to the individual to decide what enters or doesn't enter their minds during times of meditation. I don't think that yoga or judo for that matter have to contradict any spiritual beliefs. There is room for both. The spiritual connection for me is the body is my body as a temple and I am just doing a little "preventive maintenance" to use an Army term from a time in my life when I practiced another martial discipline.