Final answer:
The Omen of 12 swans represents a good omen in various cultures, symbolizing divine protection and luck.
Step-by-step explanation:
The Omen of 12 swans represents multiple birds of the same species appearing together, which is considered a good omen in various cultures. In Greek mythology, swans were associated with the gods and represented purity, grace, and beauty. Seeing a group of swans flying together was often seen as a sign of divine protection and luck.