According to Osho, a ‘messiah’ is a mistaken, secondhand idea that presupposes a personal God who sends special agents; since no such God exists, no messiah has ever existed or will. Claims to be one reflect egoic megalomania and rely on circular proofs (scripture citing itself). The whole concept is baseless.
A messiah isn’t real—there’s no person-God sending special helpers; people who claim it just want to feel special and point to their own books as proof.