Well, it starts off with some guy who's pissed off at some ad, which read something like: "Teacher looking for assistant with an earnest desire to save the world." He checks it out to see if it's legit and to satisfy some curiosity, and it turns out that the teacher is actually a gorilla named Ishmael. Before he meets the gorilla, he reads another sign that pisses him off for some reason: "with Man gone, will there be any hope for Gorilla?"
It's an ambiguous question, and he doesn't understand it at first. Does it mean that if Man is gone, then will Gorillas finally be able to climb out of their hole and survive? Or, does it mean that with Man gone, will the Gorillas be doomed to perish, provided that we won't be here to save them from potential extinction?
Anyways, it goes on, and the so-far nameless assistant (who's taken the job) is a typical man, who's blinded by a story or a myth that we people use to comfort ourselves, and slowly but surely, his subconscious propaganda begins to unravel before him...
That's the gist of it anyway. The examples used are easy to follow, as the assistant/student is totally in the blue about everything, and he's made to figure it all out himself.