The boy threw a pebble down the sea,
And down it floated to the azure abyss.
Creatures with fins moved from it's determined path,
It's journey an unwavering bliss.

The weeds pulled the rock in it's slippery tentacles,
But it pulled through the magnificent construct of oceanic flora.
The creatures watched its venture,
Emanating a sense of hopeful aura.

But as it went deeper and deeper,
It was watched by the silent reaper.

Rhyme scheme: abcb

Denotations:

Pebble: An ambitious human
Ocean: Vast opportunities
Weeds: Obstructions from the goal
Reaper: Death (here it means untimely death)