In fact, this issue was a controversial issue in the past. Each faction also has different explanations. I'll tell you a way now: if you live on the 1-5 floor of a unit building, take the door of this unit as the direction, and take your own door as the direction above the 5 th floor. And use a compass or compass, at the distance of seven footprints outside the door, face the door, put down the plate and determine the direction.
Isn't there a compass in the bedroom, southeast, northwest?
Specifically, you can go to the decoration e station for consultation.
If there is a problem with feng shui, decorate station e.