What was Bhisma thinking, as death approached?

The Mahabharata tells of the old commander finally falling from his chariot. There he sprawled, his body propped by dozens of arrows that had pierced his body. And still he was not dead. His eyes looked over to the vast battlefield: a terrible spectacle. Hundreds of smashed chariots, hundreds of dead horses and elephants, thousands of bodies, minced to pieces or crushed. The stench of blood everywhere