In Buddhism, it is believed that once someone disintegrates, their mind does not cease to exist. Rather, their superficial conscious mind dissolves into a deeper level of consciousness; he calls the very subtle mind, which has neither beginning nor end. What is experienced at this level is decided by karma. Karma is the belief that every action has a consequence, regardless of whether that consequence is good or bad. For example, the mind is like a small swimming pool, every little wave or splash hits the opposite end of the pool. When the subtle mind leaves the body, it enters a state called Bardo. Bardo is a dreamlike state of unconsciousness in which one can experience visions based on acquired karma, so visions can be terrifying or wondrous. Karma also leads to rebirth. If one were to acquire good karma, he will be reborn in a fortunate state, either as a human being or as a god. However, if they acquire negative karma, they are reborn in a lower state, such as an animal, a hungry ghost, or a hellish being. This cycle of rebirth and death is called cyclic existence. In this cycle there will always be suffering and attachment, but with Buddhism perfect peace can be achieved