What is superstition?

Superstition is a traditional expression of a series of results or consequences under certain conditions, symptoms and reasons. However, the so-called conditions, symptoms, causes and consequences here are not necessarily related. For example, "if a crow takes the lead, there will be disaster." In this superstition, the crow is a state or a sign. If you see a crow flying overhead, then people are bound to encounter disaster, or a catastrophe (result). Generally speaking, although there is no necessary connection between the above conditions and results, it is purely hypothetical, but people firmly believe that there is a causal relationship between them.