Jesus isn't predicting a bleak future for Peter, but a path of sacrifice that will ultimately bring glory to God.
While the imagery of being dressed and carried by another sounds daunting, Jesus uses it to reveal the purpose behind Peter’s future suffering.
A Martyr's End
Most interpretations, even within the ancient commentaries, lean towards this prediction referring to Peter's eventual martyrdom. The 'stretching out of hands' and being 'carried where you do not want to go' powerfully evokes the image of crucifixion, a death Peter would undergo for his faith.
Redefining Success
Jesus is showing Peter that his ultimate service and the highest expression of his love for the Lord will not be found in independent action, but in a willing, sacrificial surrender. This sacrifice, though perhaps resisted by natural inclination, would ultimately glorify God. It's a profound redefinition of what it means to follow Christ – not just in active service, but in willing suffering for His sake.