In a roller coaster ride, the downs as well as the ups are what brings the thrill and enjoyment. A roller coaster which only goes up would be boring. You need to go down in order to go back up again. And the whole experience (both ups and downs) is what brings the enjoyment value to the ride.

Life’s just like that, I think. Without disappointments and failures in life, the successes probably won’t be as sweet. Learn to enjoy the failures as well as the successes. The failures are often necessary to success.