If you see a little child you can see the spark in their eyes. As we grow we keep loosing that spark. Life gets harder and keeps sucking the motivation out of us. I think motivation is the most precious thing in life and we loose it so easily without even being fully aware of it. As I grew up the most difficult thing I've faced is to keep myself motivated. The dreams we dream don't just come true. Our reality is totally different from our dreams.
I believe you and I felt the same way too. A child had lots of sparks in their eye and motivated by the childs happiness deep within. As the child grow older he realizes that the world isn't that happy. You need to work hard and get motivated each day to live a happy life. Without it you feel sad, depressed which would lead to taking ones own life. So I think getting motivated each day is a good thing that we would live and die very old and happy.