You can't understand Feng Shui too much, because it has no scientific basis.
The meaning of "superstition" tends to "believe blindly, believe without understanding" Therefore, theoretically speaking, human beings may have the concept of "superstition" about everything, and even in the field of science, there is "scientific superstition", for example, believing in the wisdom of the collective, not the individual. If you only believe in the collective, it is also superstition, and the collective may make mistakes.
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Introduction to superstition
The essential definition of superstition is to believe what you shouldn't believe. People's positions are different, and the content of suspected superstition is also different. According to Christianity, it is superstition to believe in other religions instead of Christianity.
So are other religions. Buddhism is a sacred belief, so it is not superstition. In other words, the original meaning of superstition is "believing in the wrong things", not "believing in ecstasy".