YOGA :Just Exercise or a Hindu Religion?

"When Westerners employ yoga techniques as a means to improve their health, they should understand that they can also be producing subtle changes within themselves which will have dramatic spiritual consequences that will not be for the better. Regardless of the school or spiritual tradition, yoga practice tends to alter a person's consciousness in an occult direction."—John Ankerberg, Innocent Yoga?
As in the days of Noah....