@René Lie,
Delighted you you got a kick out of that . . . very observant
Came across a three-fold 'Happiness' factor list . . .
M A H:
Mastery [which can make humbly developing good habits, skills, virtues like
GTD,
etc. so worthwhile]
Autonomy [thinking in the ability to direct one's life]
Harmony [Socially and with oneself . . . which was when
Laughter came to mind . . . with others or in solitude]
Thank you very much sir
Ps.
H also is a great reminder for
Happiness itself along with
Humor and
Health etc.