This opens up the discussion of how the buildings and rooms in Poe's works represent parts of the mind. As Wilbur asserts, Poe's "cellars or catacombs...represent the irrational part of the mind", and as in the asylum in "The System of Doctor Tarr and Professor Fether", "The keepers are the rational part of that mind , and the inmates are its irrational part” (Wilbur 821). The many rooms of Prospero's palace could be interpreted as the different parts of his mind, and as he passes through them he pushes further and further into the less sane recesses of his mind. The theory that the architecture in Poe's work is a variant of his mind or the minds of his characters is well supported in both Usher and Prospero.