The title is what Jesus said to Peter when he was questioning what would happen to the Apostle John. Jesus had just told Peter that he would be martyred for his faith and instructed Peter to follow him.
(This he said to show by what kind of death he was to glorify God.) And after saying this he said to him, “Follow me.”
Peter turned and saw the disciple whom Jesus loved following them, the one who had been reclining at table close to him and had said, “Lord, who is it that is going to betray you?” When Peter saw him, he said to Jesus, “Lord, what about this man?” Jesus said to him, “If it is my will that he remain until I come, what is that to you? You follow me!” (John 21:19–22, ESV)
I always liked how Jesus kept it simple: “You follow me!” I only recently noticed that He had just said “Follow me” in the previous section. The two statements make nice bookends highlighting our need to focus on him, not others.