I think my fish was a re-incarnation of Jesus!?

When I used to watch my fish, he made weird mouth movements and was and extremely nice to the other fish in my tank. One day, he was just sitting flat on its side on top of the tank, and it lost all of its color. And it just sat there, all day. So I figured it was sleeping. So then, it was swimming around the next day and then a week later, he just died again. And the pebbles were in a formation of a cross. And all the fish were in a circle and they looked unhappy. I think they're ready to celebrate fishmas... what do I do?