A communication, often cryptic or ambiguous, which is believed to have been sent or inspired by a divine or supernatural being such as a deity, God or other supernatural force.
It invariably involves the use of an intermediary known as a prophet who is a human being with special power to understand divine messages, and who then relays these messages to other people, and the messages are called prophecies. The messages often foretell events in the future, or give warnings about acts that humans should either do or avoid doing. In Greek mythology, Cassandra, according to the Iliad by Homer and the Aeneid by Virgil, was believed to have the power to foretell the future, but she was also cursed in that nobody would believe her prophecies.