How do you feel when you lose a game of Magic? It hurts right? You are mad at yourself for making a choice somewhere that obviously wasn’t right. You are mad at one of the other players because they took you out when obviously another player was the threat. You are mad at your deck for not giving you that hail-Mary top-deck that would keep you in the game. How do you feel when you win a game? You are pretty happy right? For about thirty seconds. Or maybe you aren’t even happy because “It was luck that I beat you” or “I hate to win by decking” or some other reason.
In Magic, as in life, we tend to tie our own self-worth to winning or losing the game. The problem is that losing a game is far more damaging to our psyche than winning can repair.