Quantum mysticism is a type of belief system that tries to explain the world in terms of quantum physics, which is the study of really small particles and their behavior. Basically, it surprises people because it suggests that everything in the universe is connected in a way we don't understand. It suggests that things like thoughts, feelings, and intentions might also be connected in a way that science can't understand. Quantum mysticism is controversial because some people believe that it goes against science's understanding of the universe.