There is a balcony directly above my bedroom, and I want to get some dirt or sand on top of it to pl

Don't move too much, pay attention to the structure and waterproof, it's okay to plant some plants in pots, and pay attention, some people like to plant some foliage plants, or orchids, so they use black nets to shade the sun, this is not recommended, it will form a net. Against bad luck.

Nowadays, many balconies will use flower trays to plant plants on the top floor of perennial grass to shade the sun and reduce direct sunlight, and these flower trays are only a few centimeters thick, which is a good consideration.

In feng shui, it is generally not advisable to cultivate too many gardens on the floor of the house. (Those man-made parks on rooftops and rooftops are actually bad for feng shui.) So it's only recommended to plant some bonsai, and don't make too much of a move.