I finally knew... why Christ's prayer in the garden could not be granted. He had been seeded and birthed into human flesh. He was one of us. Once He had become mortal, He could not become immortal except by dying. That He prayed the prayer at all showed how human He was. That He knew it could not be granted showed his divinity; that He prayed it anyhow showed His mortality, His mortal love of life that His death made immortal.