Maybe It's A Test Poem by RoseAnn V. Shawiak

Sadness seems to penetrate everything in life, even
happiness.

Because when the elation is gone from our minds, a
sadness at it's ending takes place, not as incessant
or intense, but sadness just the same.

Why can't we stay happy and never have to experience
it I wonder at times, then thinking more about it,
finding it might be a test, repeated over and over.

Maybe it's getting us prepared for the sadness of death
and loss of ourselves eventually, it's a possibility,
I guess.