Keep in mind that the story is actually embedded in Kafka's "The Trial", and discussed by two characters within that story, who have very different views of its

Keep in mind that the story is actually embedded in Kafka's "The Trial", and discussed by two characters within that story, who have very different views of its meaning. I think it is very deliberately written to be impossible to "understand". If you think you have found its clear and unambiguous meaning, you're wrong.