Fun.

Fun is the enjoyment of finding pleasure in an activity. Fun is very personal and to some extent unpredictable.

It has been suggested that Fun's evanescence can be seen when an activity regarded as fun becomes goal-oriented. Many physical activities and individual sports are regarded as 'fun' until the participant seeks to win a competition, at which point, much of the fun may disappear as the individual's focus tightens. This is NOT necessarily true. 

The pleasure of fun can be seen by the numerous efforts to harness its positive associations. Many teacher of subjects that are normally quite difficult to master, have "fun" added to the title.

Why all this talk of fun? Well, the first four of the Five Tasks of Life are Service, Expression, Growth & Duty. The 5th one is also a task, but is more applied to the first four. It is Fun. And it is rather important, especially as it is all-too-often omitted by the seeker. 

Whether you're playing or pursuing an occupation, it is important that you must have fun, at least hourly, if not with every minute. Even if you engage in a somber occupation associated with sadness, you can internally 'have fun with it', without offending anyone. 

"How can I help it if I think you're funny when you're mad?
Trying hard not to smile though I feel bad
I'm the kind of guy who laughs at a funeral
Can't understand what I mean?
Well, you soon will
I have a tendency to wear my mind on my sleeve
I have a history of taking off my shirt", by the Bare Naked Ladies. ​