All Living Things Are Gates

From this simple, proven premise we reach a hypothetical corrollary -- All Gates are living things. That is, the psychophysical import associated with entrances and exits imparts them with a characteristic, functionalist personality. The anthropopsychic reification therefore can actuate the Gates, transferring the intension of the door to the intention of the door. This is the basis of the Famulus Working.

Spruce Street represents a Gate of illustrium magnus, the most glorious of its kind. Such a gate requires the most esoteric rituals to open. The ingredients alone require ventures into unexplored areas of urbomancy.

-- The diaries of Olympiodorus the Third, undated