However, in interior design, there is also a certain scientific basis for the bedside to rely on solid walls. People's psychological need for security is reflected in the spatial layout. As designers, we will try our best to design the location where the host will stay for a long time at the wall or corner. For example, at least one side of the bed in the bedroom will be against the wall, there will be a solid wall or other obstacles behind the sofa in the living room, and the chair in the study will either be backed by the solid wall or simply designed in the corner. Because people will feel more secure when there are objects around, for example, when we go to a restaurant for dinner, we prefer to choose a corner seat rather than a middle seat in the hall, which is out of our psychological needs.
In fact, this design has a long history, and the most typical one is the treadmill in ancient China. Many people who have seen trampoline wonder how this bed can be so big while marveling at its exquisite craftsmanship. This is actually out of psychological needs. In ancient times, buildings did not have ceilings. A room is often tall and big, so it is difficult for people to sleep quietly in an empty space, which makes us feel unsafe. So the ancients designed and made a pedometer, which is equivalent to enclosing an empty bedroom and a small sleeping space. In this way, people will not feel uneasy when they sleep, and the scale of ancient buildings is larger than that of modern buildings, so that a huge movable bed will not be crowded in the room.
Therefore, some practices in decoration have scientific basis and practical consideration, not just because of geomantic omen.