It was amusing to look round the filthy little scullery and think that only a double door was between us and the dining-room. There sat the customers in all their splendour—spotless table-cloths, bowls of flowers, mirrors and gilt cornices and painted cherubim; and here, just a few feet away, we in our disgusting filth, For it really was disgusting filth. There was no time to sweep the floor till evening, and we slithered about in a compound of soapy water, lettuce-leaves, torn paper and trampled food.
This entire passage is an analogy for the separation of classes. The door to the dining room is a microcosm of the door between lower and upper class.
