They say, humor is a property of reason. Not exactly. Idiots like joking too, but his jokes are foolish. Moreover, for a smart one humor is are, while for a stupid one it's a sticky pleasure.
A squirrel trapped in a wheel has no sense of humor, it is too serious... if she had laughed and flopped on her ass, the wheel would have spun her around and thrown her out.
They're not only afraid of being funny. They are afraid to appear stupid and weak, ugly and bad. They fear that they are not admired or loved... These people are literally filled with fear. Demons fears literally driving them crazy.
Rituals provide unity people, unity this love. Life is a movement, so that rituals do not become boring, the action requires humor, beauty and diversity.
Something is funny when it's unexpected. Something is scary when it's unexpected. Something is surprising when it's unexpected. Something is interesting when it's unexpected. Something is effective when it's unexpected.