Tonight, Das shares a thought from chapter 6, text 28 of the Bhagavad Gita about the spiritual philosophy of yoga.
"Self-realization means knowing who one really is in relationship to the supreme truth — God," Das says, looking over his wire-rimmed glasses at the students. "Whether we know him by Jehovah, Elohim, Krishna, Allah, he is the same — the source of everything."
Das reminds the students they are spiritual beings and thus the goal in this life is to renew their relationship with God, which was forgotten when they came to earth. Yoga, with its breathing techniques, meditation and stretching positions helps individual in their quest to control the senses and thus become open to God's presence.
He closes the book and puts away his glasses, and the students pull out colorful mats to begin the poses.
"If we can learn to tolerate a yoga position longer than we thought, than we can tolerate the material world longer," Das says, leaning forward onto his forearms, his legs and ankles hovering above his mat.
As the group wriggles into the positions that stretch previously unknown muscles, Das explains that the first level of concentration is to focus on breathing and body balance, but eventually, the goal is to focus and meditate on God.
Nancy Roth wasn't so sure she'd be able to focus on anything spiritual when she attended her first yoga class in her old high school gymnasium in Scarsdale, N.Y.
"But I found that by the end of the class … I was in such a centered place and I was very aware of God's presence, even though the place still smelled the way it used to," jokes Roth, an author and assisting priest at Christ Episcopal Church, Oberlin in Ohio. "That's when I first recognized for myself that (yoga) was useful."
Since that class in the late 1980s, Roth has taught yoga in downtown New York for executives on their lunch breaks, in workshops and in her church. She's even written a book on the topic called "An Invitation to Christian Yoga."
For Roth, yoga is a way to connect with God, as well as a constant reminder that the body and breath are powerful, holy gifts from God.
"The body is the temple of the spirit, and we (should) take care of it just as we take care of our places of worship," Roth said.
That's the same point LeAnne Tolley brings up when neighbors give her quizzical looks after learning she does yoga — looks that say, "You're a Mormon and you do yoga?"
"I believe that this physical body is a direct manifestation of who God wanted us to be, but (too many people) spend their whole life hating it," said Tolley, who teaches yoga in Highland and directs free weekly classes at her LDS meeting house where an average of 60 people come. "If yoga doesn't do anything else except teach us the eternal nature of our body along with the eternal nature of our spirit, that's all yoga needs to do."
Tolley also explains that in her faith, members are taught to seek after truth and anything that is "virtuous, lovely or of good report or praiseworthy."
For her, yoga has deepened her spiritual foundations, not threatened them, as she has enjoyed increased flexibility and strength, as well as a greater appreciation of the body/spirit relationship.
"But sometimes we're afraid that we won't be able to separate out someone's opinion, interpretation … (and) find the truth," she says. "I think that's what people are scared of (with yoga)."
To ease some fears, some Christians call their yoga practice "Christian yoga" or change the names of poses — "Sun salutation" to "Son Salutation," referring to Jesus Christ — or add Bible scriptures to their classes.