All hail the Bog Mummy in all His fetid squalor, long may He fester

Just think how happy the ancient god will be though, they've not had anyone bound to them in thousands of years, it's nice to not be forgotten about

I once read a beautiful story about a man who prayed to a powerless deity and went through a lot and the deity couldn't help him.
He was the god of a warm summer breeze or something, but searching for this doesn't yield any good results.

Does someone know the story?