what is the prophecy in harry potter

In the Harry Potter series, a prophecy is a prediction made by a Seer, someone with the ability to see into the future. The most well-known prophecy in the series is Sybill Trelawneys first prophecy, which foretold the birth of the person who would be able to defeat Voldemort. The prophecy stated that "the one with the power to vanquish the Dark Lord approaches. And the Dark Lord shall mark him as his equal but he shall have power the Dark Lord knows not. For neither can live while the other survives". Voldemort became obsessed with discovering the end of the prophecy as he believed it would tell him how to destroy Harry. The prophecy was the reason for Voldemorts downfall, and his decision between Harry and Neville being the Chosen One only emphasized this. However, there is a theory that the prophecy potentially wasnt real but still managed to defeat Voldemort.