Can the back wall of the main hall open the door?
From the point of view of travel, if you want to open the door from the back wall of the main hall, it must be conducive to travel and convenient to open the back door. If you don't believe in Feng Shui, open the door if you want.
Look at the problem from different angles and draw different conclusions. Therefore, there is no fixed answer to whether to open the door from the back wall, and you can choose according to your own preferences.
Touliu is a geomantic term, which means that there is a window or portal between the main entrance and the opposite side, so you can't leave money. Because wealth is the foundation of your life, it is also the taboo of Yang Zhai Feng Shui, also called the arrow through the heart. There is a saying that "Yang Zhai is the most fierce, and the flow is the most taboo".