On the back of the sofa, there is a window 40 cm from the ground, 2 meters wide and 2 meters high. How to solve it from the perspective of feng shui?

Family members spend a lot of time sitting on the sofa, so its position is very particular. When placed, it is required to lean back, that is, to rely on a solid wall. If there are windows, doors or passages behind the sofa and there is no solid wall to rely on, it means that there is no backer behind it and it is empty, which is not conducive to the development of the cause. If the sofa back is really not as reliable as the solid wall, the alternative is to put a low cabinet or screen behind the sofa, which is called "artificial backer", which can also play a remedial role.