A mighty hunter

If I have an Achilles heel, it's possible being a half-step slow in matters of the heart. I think it's only because I want to protect it. But if there's no risk, there's no reward. But when my heart gets moving....look out. It's hard to stop, like a train. It knows what it wants. It runs and runs until it gets what it wants or it hits a wall. The wall hurts more when the heart knows, knows, what it wants.