Does the lecture room talk about Feng Shui?

A professor in Taiwan Province Province said recently. However, I find it difficult to connect the previous theory with the current suite. I have read the Book of Changes in Daoism roughly. When there was that theory, there was no suite, and no one lived upstairs. Who should live upstairs and who should live downstairs. I think most of the new books are compiled to cater to some people's hearts, as long as they are generally comfortable, eleven will do. We all like to live in houses facing north and south, but it is said on TV that houses of Huizhou merchants used to avoid facing south, because the south is a fire. If it is impossible to make the house face east or west in an east-west alley, we should try to change the courtyard door to face southwest. Therefore, the customs of different places are different, and they are not completely determined according to the Book of Changes. Everyone knows that all temples face south, but the temples in our hometown don't face south. The Forbidden City should be due south and north, right? However, the Forbidden City does not face due south, but extends to the capital of Inner Mongolia with the central axis. But this is not the Forbidden City due south. When it was rebuilt, it was built according to the requirements of Feng Shui and Five Elements.