It might be worthwhile to fans to check out Vance's biography.
I like to say the fiction that has most influenced my path is Green Magic by Jack Vance.
There is nothing in the story that would explicitly explain this. It isn’t even a particularly well-written story. I barely recommend reading it! No quotes, no events, just a ….. I wanna say “theme” perhaps, a sense of human insignificance, cluelessness, and an imaginary potential that will never, can never, be achieved.
It’s kind of like saying you were influenced by some little birds flying in and around some shrubs. It isn’t the birds or the shrubs, it’s something much deeper.
The story is about an accomplished mage who, while going through the effects of his disappeared uncle, discovers references to Green Magic. He uses some techniques to contact the plane of Green Magic. Two of the residents are horrified at the pollution and profane disturbance the mage’s effort have caused, and contact him in order to get him to stop. No, he must learn Green Magic. The Denizens of the Green Dimension (let’s call it) are strictly bound not to cause any harm to him, even though they could dissolve him in an instant, so they are compelled to agree.
He struggles through the training, it requires thousands of years. He only makes minimal progress, though he has learned more than everyone on earth through all the ages. His Green Magic is pitiful, and he realizes that even millions of years of additional training won’t make it much better. He wants to give up, and go back home.
Of course, THEY expected this development, and send him back. Now our mage has acquired a rarified sensibility for phenomena and an impossibly demanding ascetic sense. Human food seems worse than excrement, the air foul and toxic, he cannot tell the difference between beautiful women and ugly ones. He is powerful, but his powers seem useless, not even worth using.
It would be a spoiler to reveal the rest, but anyway, whatever point I wanted to make has been made, but it isn’t explicit, and if you don’t get what it is, you probably never will.