Do you see all these particles moving? You just stare at them long enough on this bridge. You realize how similar these parts are to people. Each one of these little specks are individual specs, but they all come from collectively the same thing. They're all moving collectively towards the same direction. Different things might happen to them. Some might get stuck, some might sink, are all different shapes, and they're all different sizes. But they're all moving towards the same area, they're all moving with the current. Very similar to life. In fact walking on this bridge is very similar to life.
Think about your walking, you might be afraid to walk, you might see what's underneath you and think that you might fall. We're trusting that this bridge is going to stay structurally sound and not collapse. There's all these other interesting things you could trip on. You could find a loose plank within the bridge, scare the shit out of you. You could walk on an easier path. But it's not any safer. Because you're still on this bridge. You just feel like it is when you can see the bottom where you might fall, you get extra scared. But I'm still moving. I'm still walking towards the end of the bridge.