Not only am I getting a lesson in appreciation of ‘real’ poetry but my vocabulary gets expanded to boot. (grin)
The scythe pic link will be valid unless someone on Craig’s list snaps it up.

Sibilant Story

To understand the imagery of scythes and the word ‘esses’
I nearly went all loony here and pulled out all my tresses.
The scythe my father used to cut the head off every weed
Had handle straight and sickle blade shaped less like ‘ s’ (more ‘c’d)
At last I found a sickle with a double curvy esse
Connecting rod/snake imagery no longer is a guess.
So thank you Dave for lovely poem. As usual it’s a keeper,
And not that grim for one involving tool of the Grim Reaper.