Pain is a part of life. You can lose the feeling of it through torture and consistent discipline but it is still there. No matter how many times you cut yourself or hit yourself, your nerves will still feel the pain. Its just a debate on whether your brain thinks pain is good or pain is useless. Thats why sometimes someone can not feel pain. Because they've been hurt enough times that their brain has shut down the process so that it can't feel it again, emotional or otherwise. I think thats both beautiful and sad.