What is the most useful thing to learn, facial features, strange doors, eight characters or feng shui, or wisdom knowledge?

1, physiognomy, strange door, eight characters and feng shui are all included in the "Yi-ology system". It belongs to the study of Shu Shu, the mystery of Yi-ology. Its purpose is mainly to measure people's success or failure, environment and other good or bad luck. 2. Wisdom knowledge actually contains a wide range. For example, philosophy (science of thinking), puzzle (chess and cards) and so on. The list goes on and on. What is the most useful to learn depends on your personality, hobbies and your own quality, before you can draw a conclusion.