Working at an amusement park church

There is some sort of religious ceremony in which I'm taking part as a behind the scenes worker. It's a regularly scheduled event, like a service offered throughout the day at an amusement park. There are three tube-like structures running up a cliff. At the top, there are organically shaped rotating yellow rings. Their purpose is to reanimate or crucify people during the service. My job is to make sure they are in working order - I have to climb the cliff to make sure they are working.