Sometimes in a written text I express a ton of things I would desire for something to have even though I know it is absolutely impossible to fulfill those desires.
For example in Spanish we can use: "La lista de los reyes magos" which means something along the lines of: "Santa's letter". It has a small component of irony in it.
The purpose in the context I'm using the sentence is: "I know that I'm asking for too much. I'm adding a lot of requirements for you to have more context in the direction I want to take. I know this is unfeasible.". That is why I want to give that small component of expressing that the result is impossible to reach.