1, the back door is open and it is a cliff.
If you open your back and look at it, if it is a ravine, downhill or cliff, it means that there is no support on your back, just like a seat without a backrest, people may sit unsteadily and uncomfortably, and they may lean back unexpectedly, and the house is the same. Without the support of the rear gas field, wealth will "slip through the net" and it will be difficult to work at home to make money. If the back door is a cliff or downhill, the children at home may open the back door, which may also cause life crisis.
2. The front door and the back door are in a straight line with the geomantic omen.
If the front door and the back door are connected in a straight line, there is nothing in the middle to stop them, which constitutes the so-called "evil spirit." Such geomantic omen will have the opposite effect of discouraging and releasing wealth. Under normal circumstances, there are furniture or screens in the middle, which does not constitute evil spirits.
There is an alley behind it.
In geomantic omen, if there is an alley and a road leading to the back door of one's home, such geomantic omen is unlucky, which will have a negative impact on one's family fortune and affect the owner's health, safety and wealth. There is an alley in the back, like a villain stabbing a knife in the back. There are always little people in life to hinder themselves.
There is something behind you, so you should look at the right place.
It is said that there is something behind it that is lucky. However, sometimes it is important to rely on the place. If you live near the ridge, there may be a mountain (cliff) at the back door of your house. Faced with this situation, even if there is something behind it, it is very dangerous. If the weather changes, the rocks on the mountain may fall at any time, which will bring danger to your property and personal safety.