Feng Shui is a part of China traditional culture, which involves many aspects of human life, such as fate, marriage, family and career. However, Feng Shui is not a science, but a cultural tradition and belief, so it is unscientific.
Therefore, if the online Feng Shui course conforms to local laws, regulations and policies and is approved by relevant departments, it is legal. However, if online Feng Shui lessons violate local laws, regulations and policies, or are not approved by relevant departments, it is illegal.