The Emperor
When the Emperor's letter comes out, we are in front of a person who has achieved great success in all the projects he has undertaken and who, possibly, is in a great moment, both financially and professionally. If not, The letter tells us that soon we will see changes that will lead us to this situation, but it also tells us that we must try to keep our feet on the ground and not fly any farther than we can get. If we are not aware of the things, we can go very far, but fall in the same way we have climbed.
For those who do not have a job, the letter from the Emperor tells them that soon they will get something better, even, than what they were looking for, but once they have succeeded, they must remain humble and not let success change their way of being and thinking.