Our tour guide offered to take us for a hike up to a Mayan Ceremonial Site atop a mountain. We did not witness an actual ceremony, but we saw the remnants of a recent ritual.
Antonio, our guide, filled us in on some traditions that are carried out during ceremonies to rid people of diseases and such. There are many old candles around the sites, and they are of all different colors because each color represents something different -- love, sickness, children, whatever.
Also, we were told that live chickens are still sacrificed -- the blood is spilled over the site, which may explain why there were also some stray dogs hanging around...