What an amazing storytelling in this story. I was wondering how many of the stories would be a literal take on the theme

well you have delivered very well.
I love the fact that the span of the story is just a couple of hours or even just minutes and it doesn’t go anywhere other than the spawning grounds. The author made a good effort to take me into the emotions of the Star Priest and made me feel sad for losing his companion.
Interesting take on the flipside of the spawning pool, to see that there still is a direct connection to the Old Ones. The willingness of the great Itzl to grand the fish life outside of the water gives a me a warm feeling. The fish becoming some monstrous Fishgor almost feels like a work of the chaos gods, but in the end it still is a lovely and harmless creature.
A very much feel good story in the end.