"Life is a roller coaster; it has its ups and downs." I don't believe that for a minute. A roller coaster has ups that are slow, and are only there to get you high enough to send you barreling toward the ground: the fun part. In reality the ups are the best part and seem to go by a lot faster than the downs. The downs in your life aren't fun. I don't believe the purpose of the good things in your life is to introduce the bad. Life doesn't want that for you.