A ritual (or a rite) is a set of actions people do. In a ritual, the actions are important because every action stands for a particular thing. Rituals are always done in very similar ways. Very often, rituals have a religious significance and are prescribed by a religion or traditions of a community. Danger might be involved in carrying out the ritual. When the ritual has been performed successfully, it is usually followed by a celebration.
A ritual can also be linked to obsessive compulsive disorder, when a person believes that performing the ritual again and again is necessary.