We've all heard the anecdote about the little boy who was told by his mother to not touch the fire because it would burn him, and despite the warning touches the fire anyways and gets burned.
Why do people do this? It's because pain is a growning experience.
We know it's wrong, we know their are consequences but we do it anyway, because for some reason we can't just accept a, "Don't touch the fire it'll burn you." We have to experience the heat for ourselves, we have to feel the pain...see the blister, and then even though we know it'll leave a scare if we pick at the blister we do it anyway...because we need that reminder of the pain we went through so we won't make the same mistake again.
Sometimes we let the pain beat us, we let it change us. We let what happened take over our lives and we try so hard to avoid that pain that we forget who we are, we forget the people we care about, and we forget how to live... Instead of growing, and learning from the experience, we let the pain become a block, an obstacle... Fight it
"Why do we fall? So that we can pick ourselves back up..."