Does anyone know what the Feng Shui taboos are in the building?

If a house is a building within a building (that is, what we often call a duplex structure). The living room is preferably located on the lower floor. This is because. The main door of a house is usually located downstairs, and the main door is the most direct place to receive air. If the living room is located upstairs, the airflow must pass through many gates and then climb stairs to enter the living room, which cannot hide the wind well. Furthermore, as a gathering place for us and our farmer friends, it would be very inconvenient to move around. Moreover, there are too many people talking, so the dirty air in the room cannot be discharged quickly, which affects the freshness of the aura. In addition, the pattern of being too hidden and blocked is also very detrimental to the career and interpersonal relationships of the owner. Therefore, for a central building, the living room should be located on the lower floor. For more private spaces such as bedrooms and studies, it is best to be located on the upper floor. Only in this way can it conform to our living habits and the layout of Fengshui.