Having purified herself in the water of the Kastalian Fountain, Pythia (the Oracle) bent over the Navel of the Earth (the Sacred Stone), ate a laurel leaf and, inhaling the mystic vapors emitted from the chasm, entered a state of ecstasy, uttering incoherent words.
These answers (also called oracles) were then composed into verses by the Priest, while interpreters endeavored to render some meaning out of the prophecy.
Arguments over the correct interpretation of an oracle were common, but the Oracle was always happy to give another prophecy if more gold was provided.
Let the Oracle Speak!
Interactive Voice Response Systems (IVR)