Why "Break a leg"  means good luck?
607575
how can it be good luck. its very painful.
812935
It can mean hope and peace also, which is what the religion it's based on believes in.\n\nIt can be like a good luck charm.
86240
you will fall. when at first u don't succeed, try try again
833363
Sometimes you need a little bit of luck
350315
Good luck or bad luck determines the life or death of most animals and plants on earth. You, on the otherhand, have some control over your situation, because you can choose with your brain when to take risks, to put your self in jeopardy. You alone jeopardize yourself by risk, not safety.
96418
In some parts of the country they are considered good luck.
214816
This is a delightful British term that means doing your best to get on with it, despite the odds being stacked against you. It doesn't mean you're winging it, it means you're doing your best in a bad situation. or having a 'stiff upper lip' and steely resolve, which all us brits love to do!
13458
Not only do I believe in luck, but luck is a real thing. Probabilities explain certain events, but repeatedly beating probabilities is what "luck" is.
416540
Good leg side. It provides support when you transfer weight onto bad leg.
21171
It's a symbol of the fact that both good luck and bad luck will eventually pass.  Wikipedia has more at the link below.
971333
Good or bad luck is the result of good or bad choices.\n\nCurses? people make them but they cannot affect you unless you allow it. It is all a psychological thing.
181634
Broken leg - specifically the lower leg.
1160561
hard luck, keep rolling
525703
It means a person who has a positive attitude towards life, finds something to be happy about even in bad times. And who else could be more luckier than any one else who is happy all the time in this world where there is whole lot of hatred, accidents, sad times, where every few hours you could be upset on something or the other. \nHe accepts every thing cheerfully, let it be good days or bad days. He just finds something or the other which is good about that happening, which makes him luckier than others.
67351
Bad things happen to every one occasionally, but if you are supersticious like me, try this.  Find a horseshoe, and "Nail it up so that the ends of the horseshoe are pointing downward.  Don't let anybody tell you that when the points are up, your luck is caught within as in a corncopia."  The horseshoe is a great good luck charm that recieves it's energy from the cresent moon.  Hang it over the door.
854579
YOUR  VERY  HEALTHY  GOOD  LUCK!
1072018
It simply means Mental Toughness.\n\nA SERIOUS ATHLETE/PERFORMER WITH DREAMS OF SUCCESS WOULD NEVER LEAVE HIS/HER PHYSICAL TRAINING TO CHANCE SO WHY LEAVE THE MENTAL PART OF YOUR PERFORMANCE UP IN THE AIR?