Does not matter how powerful you are, does not matter how learned you are, Bhisma was trained in the art of fighting by Parashuram, who is an incarnation of godhead himself; in earlier of his life when he was young man, he actually had a battle with his own guru, Parashuram and Parashuram could not defeat him. He was equal to the almighty saktyavesha avatar in his strength. Therefore, no one could defeat him. And he was trained in the science of the Vedas by Brihaspati and he had equal intellect to Brihaspati, therefore the most intelligent plus most powerful plus he had a boon that he could not be killed, he had everything going his way materially but Krishna wanted to show whatever you have going your way material, if you are not on the side of my devotees, you will be vanquished in the end. And Bhisma in order to assist Krishna, by teaching this lesson to all the world, he chose to fight on the opposite side, such a sense of surrender. How many people understand him?
