Good things come to those who work hard, endure, and stay hopeful. If you are constantly disappointed in a stream of bad days, perhaps this quote will give you hope. If you endure the bad, with a hopeful heart; you are bound to earn a good day.
Not only this, but if every day was amazing you are bound to not appreciate the good days. A few bad days here and there gives us perspective and humbles us. With these qualities we can enjoy our better days to the fullest. So, next bad day you have; relax. A better day is on its way!