The icon Christ Pantocrator emphasizes Jesus’ omnipotence, his power to do anything. Jesus is the “Ruler of All” who sustains all things. The symbolism of Christ Pantocrator (explained below) borrows from Roman imperial imagery to project his sovereign power. Early Christians used cultural symbols to proclaim the sovereign power of the resurrected Christ.
I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life.