Mark wrote his Gospel to a world dominated by the power of the Roman Caesar - a world in which Caesar was hailed as lord and venerated as son of god. Into this world he unleashed a new proclamation: that Jesus was the true Son of God and Lord. It was by encountering Jesus that people were truly changed and truly restored as God's image bearers. Jesus was the one who had the true power to bring peace and harmony to the world. As people were brought to Jesus, he did what God does. He healed them and restored them just like Isaiah said he would.