Why?
Starting in Eden with Perfection and Ending in the World with Corruption
Jesus, being in a human body, can feel pain. He is in the garden, getting ready to pray about doing the Father's will. He starts to reflect on the decision that is laid before Him. Jesus is at the crossroads of eternity where He can redeem man or save Himself from torture and punishment.
He thinks about being God Almighty and enjoying His existence as God. Jesus is going back to the beginning, to how it came to this. Jesus remembers and reflects on Satan and all this evil. He thinks of Adam. Jesus, in His mind, flashes through His story.