At some point early on in life, we learn to avoid falling down. Maybe we skin our knee, or we get a bruise. Whatever the case, it hurts. Naturally, we want to avoid pain!
But have you ever watched a child learn how to walk? It's not a smooth, linear process. They fall down a lot!
I'm not just talking about physical skills here. This is true across everything we do as adults. We can build up a lot of anxieties and fears that hold us back from doing our best at things.