I like reading the post that question ISTP and religion? For myself and other ISTP's I've known, I agree they've not been religious people.
Growing up in a small town christian family and community, I found myself questioning the concepts from an early age. My continued participation during the teen years had much more to do with socializing and participating in activities with others my age vs. anything.
Most of the ISTP's I've known held a personal spirituality and often took a World Religions class in college. Which they enjoyed very much. Zen and Buddhist concepts, along with Taoism were the aspects found most attractive. I enjoyed the tribal religious studies too in their connection to the natural environment and cycle of life.
The Dalai Lama is the MOST tolerant and supportive world religious leader, viewing all religious traditions as valid and moving toward a similar goal. I personally don't consider Buddhism to be much of a religion at all. Which might be why I enjoy exploring the material without caring or getting into oh, this type of Buddhism is different from that, etc.
Watching the Dalai Lama take apart a mechanical item was the big *ding ding* Man sitting there intently focused to the point the whole world may as well have disappeared. Perhaps he uses the opportunity to practice being "present in the moment."