Life is a ride on a go-kart downhill... along the way you learn to tuck your elbows in and avoid getting hurt, and you meet lots of other people on other go-karts at the same time (they're just apparitions in your life)... and you have lots of fun at the same time because you're speeding downhill and you feel the wind in your hair and the thrill in your abdomen...
and then all of a sudden you reach the bottom, the end, where the go-kart keeper greets you, and goodness knows what follows from there.