How powerful is the human mind?

[FRANKKK]

The mind can do amazing things thats for sure. I remember hearing about a car dropping on a man while he was working on it. The lady he was doing the job for was there when it happened. She lifted the front end of the car right off the ground. You may think this is a physical deal, which it is kinda. However, the lady described that she was "in the zone" and she had her mind set that she was not going to let that man die. And amazingly enough, the man was fine.
I dont know how we can describe things like this...because later on when the woman tried to pick up the same car, she had no chance. It didnt budge.
I guess things like this have to do with a person's adrenalin rush, and their will power to do something. Now all im wondering is how can we be in this state of mind 24/7? This would make us some what super heros when you think about it.