Sweetiest Victory

Life was full of struggle, hardships and discouragements. We all facing different trials and challenges everyday. Failures and victory were just like coffee and cream or bread and butter, they're complementary. But, "Rejoice in you victory and be glad in your failure", why needs to be glad in failure?
Failure is a positive sign that a person is on the right track, it is also a sign that one must do his or her best in doing something. Be glad in failure because the word 'failure' is more than on what dictionary defines it. Many successful person on our history and in our current times has a story of different failures. Even a great nation does failure too, even a high grade computer or the most wisest chess players does failure, but why they attain to be the greatest? it is because they make failure as a key to success, as a key to the sweetest victory.