Life has its setbacks.
because life is not a bed of roses.
because life is supposed to be a teacher.
because the wisdom in you are gained from learning from these setbacks.
sometimes we win and sometimes we lose. that's life. you can never stay at the top forever. you see, to be at the top, one must know how being in the bottom feels. life teaches u that. How to control the pride once ur at the top and how to overcome the feeling of giving up when ur underneath the world.