Imagine life as a Game,
Levels are Ages, if you have gotten older your level increases, and lifes getting easier and harder, easier with Knowledge and harder because of Diseases, challenges, kids etc...
Quests are life goals, such as having kids,
having a job, a family etc...
Side-Quests are jobs your getting from your boss, Jobs from Clients, Helping the Family, Cleaning your Room, etc..
Fast-Travel is Cars, Busses, Trains, Trams, etc... (Except in Germany)
and Last but not least,
Procastination, The End Boss of life, if you defeat Procastination you have beaten life... (But also died because the game is Over...)