If you don't fall, how will you arise...
If you don't do wrong, how will you know the right...
If you don't cry sometimes, how will you know the value of happiness & a smile...
If you don't hurt for something, how will you know that you are still existing..
If you don't destroy & try to repair anything, how will you know that creating anything will be how much difficult...
If you are not betrayed by someone, how will you become strong...
If you are not wounded, how will you know that you have the power to heal yourself...
If you don't become close to anyone, how will you know how difficult it is to win someone's trust & love...

Bad happens to make us good...
Doing wrong thing is just a mistake, we will pay for it through tears, realization...
Mistake becomes sin when we left the wrong thing, when we solves the problem it becomes good in someone's life...