The pain cave, for those who don’t know what it is it’s that point during a physical effort that all you do is hurt and all you do is deal with it. Most people enter the pain cave during competitive events. I think the best examples are these finishes of the 1997 Iron Man World Championships in this video. These amazing women enter the pain cave and emerge victorious. How do you keep going like THAT! If you haven’t seen this get ready it’s unreal!
Here’s a pretty interesting article from The New York Times on how people push through that pain and how the professionals do it. Worth a read after watching that video!