Feng Shui with a big mirror hanging above the sofa backrest.

Don't enlarge the mirror behind the sofa: some people hang a mirror on the wall to make the living room look more transparent and spacious. In fact, in Feng Shui, mirrors can't be hung casually because they reflect light.

There should not be a big mirror behind the sofa. People sitting on the sofa, others can clearly see the back of the head of the sitting person from the mirror, which is very bad and will lead to listlessness and fidgeting. And if the mirror is not at the back, the back of the head will not reflect from the mirror, which is just as well.