What does it mean to say in Feng Shui that there is a dragon in the north of the house and sand beside the house?

There is a dragon in the north of the house, which means there is a mountain in the north of the house; There is sand next to the house, which means there is sand next to the residence. In feng shui, individuals dare not make arbitrary judgments, but there are some sayings, such as: there is a dragon in the north of the house, and the future is boundless. The high wall is the household, and the momentum is blocked. Living next to the railway, a scattered household. There is sand next to the house, and wealth is at home. The front door is empty and IKEA is the right room. A broken wall is a symbol of wealth. Open the door and die, as in a tomb. Add the old house to the new house, so be careful.