Sadness is...

Sadness is a grave adorned with not a single flower.

Sadness is sweet lemonade that turns out to be sour.

Sadness is a rainy day inside a leaky bower.

Sadness is an old widow who wears a mask of gower.

Sadness is a royal king who's lost his royal power.

Sadness is a plane hijacked, into a famous tower.

Sadness is the gas of Jews inside a facade shower.

Sadness is humanity, we're turning truly dour.