I have always believed the mind to be much stronger than our physical body
You can be at the point of exhaustion physically, but if you keep your mind focused and calm, you will pull through
as soon as you let your mind tell you that you wont make it, you are already going down,
I dont know if this is a good example, but if you are standing outside on a really cold day, without a jacket, your body will feel cold, but if you calm the mind, and dont let it acknowledge the cold, you can stay outside for quite the period of time, in almost a half meditative state, but as soon, as you let your mind go into a cold hysteria, you will start to breakdown, and your mind will acknowledge that indeed your body is cold.
If you are injured on the battlefield, you can either let your mind hysteria, and paralyze your body, or you can keep it focused, and pull through, even seriously injured,
the strong mind will pull the worn down body through anything,
however, the strong body will not pull the worn down mind through as much
well that was my little rant
Hope it made sense, I am seriously not good at saying my ideas,
peace,