Gary Kraftsow was a member of a panel that discussed issues of yoga and religion with Yoga Journal.
When asked if it's possible to teach the deeper aspects of yoga in a way that doesn't cross boundaries of ideology and belief, Gary responded, "I think that we can definitely teach a mind-body connection and teach deeper aspects of yoga without any language that would conflict with anyone's ideology."
"If you have a deeper initiation into the broader tradition of yoga, then you recognize that what's relevant for one individual or group isn't the same as another. If you see what is going to be appropriate for the individual or the group you're working with, you can adapt and give them what's going to serve them."
You can read the full article, "Beyond Belief" by Andrea Ferretti, in the Yoga Journal December 2011 edition.