Is it necessary to have a Westinghouse if there is an East Room in the yard?

At present, small courtyards in rural areas generally have west wing rooms, and large courtyards can also have east and west wing rooms, while small courtyards all have west wing rooms. In our local area, whoever wants to build a house will build the main room and the west wing room, which are all built at one time, with the gate facing the street, the wall and so on. So most of our local people have a west wing.

In geomantic omen, the east is not connected with the west, and the west is less than one π. There are green dragons in the east and white tigers in the west. Not afraid of the blue dragon, but afraid of the white tiger probe. It means: the East is a green dragon and a lucky god. The west is a white tiger and a fierce god. The east is higher, and the west is definitely lower than the house. So everything can be answered.