The people in Bernal look like they came out of a postcard, so the most interesting part of the place is not just the imposing rock and colonial architecture, but actually, the people. They are known as "magic" people, and are said to attract positive vibrations. They wear crystals and attract new-age pilgrims. Many times you see people wrapped in orange robes, exchanging crystals and rocks with vendors of posts.
The rock is at the limit of the Sacred Valley of the ancient Otomi and Chichimeca. Some of them travel to sell their crafts in Bernal, which is an immensely beautiful place. The interesting thing is that they wear their traditional clothes and don't have any problem chatting with the tourists.