The two recently got together to discuss their romantic comedy "Mean Moms" and Aniston noticed a marked change in her old friend, reports showbizspy.com. "Jen was struck by how calm and centered Demi seemed. Demi explained that it's a combination of Kundalini yoga, meditation and studying Kabbalah," said a source.
Aniston has also signed on for Kabbalah lessons, the source reports. "Kabbalah is a fit for her because it's about 'finding your light' and helping others," said the source.