Why Did Christ Die?

"Thousands of so-called Christians have worn hair shirts, walked barefoot on glass, made pilgrimages on their knees, slept on the hard floor, or the ground, and scourged themselves with thorns, starved themselves nearly to death, and set themselves the most impossible tasks. But nobody ever found peace in any of those ways, because no man can get out of himself that which is not in him, and righteousness and peace are not in man."