世界上不同地方的人對數字也有不同的理解及喜惡，例如中國人喜歡「3」，因與「生」同音，為好的徵兆，而不喜歡「4」，因與「死」同音。又例如西方人不喜歡「13」及「666」，認為這是「不祥的數字」。凡此種種，從真正堪輿學的角度，以上純粹是心理作用及迷信罷。實際上，每個數字從易經卦象衍生出來背後也有屬於它不同的「五行（即木、火、土、金、水）」，而不同數字的組合更會產生不同的「五行」化學作用，繼而出現不同的好壞影響。
Everybody around the globe has a different point of views towards various “numbers”. For instance, Chinese like number “3” since this is a good number representing “birth” and “prosperity” while they don’t like number “4” just because it has a similar pronunciation as “death” in Chinese. Meanwhile, westerners don’t like numbers such as “13” and “666” as they believe these numbers will bring them bad luck.
Whatsoever, from the perspective of traditional Chinese geomancy, all the above are not true. Indeed, each number belongs to a specific category in the five main elements on earth, namely “wood”, “fire”, “earth”, “metal” and “water”, and different combinations of these “five elements” of numbers result in various chemical reactions which cause various good or bad effects.
在了解數字怎樣影響我們前，首先要知道每個數字的所屬卦象及五行。
First, we need to introduce the relationship of each number and “five elements”.
「1」：為「坎」卦，五行屬水
「2」：為「坤」卦，五行屬土
「3」：為「震」卦，五行屬木
「4」：為「巽」卦，五行屬木
「5」：不屬任何卦，五行屬土
「6」：為「乾」卦，五行屬金
「7」：為「兌」卦，五行屬金
「8」：為「艮」卦，五行屬土
「9」：為「離」卦，五行屬火
「0」：不屬任何卦，五行屬土
“1” belongs to “water”
“2” belongs to “earth”
“3” belongs to “wood”
“4” belongs to “wood”
“5” belongs to “earth”
“6” belongs to “metal”
“7” belongs to “metal”
“8” belongs to “earth”
“9” belongs to “fire”
“0” belongs to “earth”
從五行相生相剋的理論上：
「木」生「火」
「火」生「土」
「土」生「金」
「金」生「水」
「水」生「木」
「木」剋「土」
「土」剋「水」
「水」剋「火」
「火」剋「金」
「金」剋「木」
In five elements,
“Wood” creates “Fire”,
“Fire” creates “Earth”,
“Earth” creates “Metal”,
“Metal” creates “Water”,
“Water” creates “Wood”
“Wood” beats “Earth”,
“Earth” beats “Water”,
“Water” beats “Fire”,
“Fire” beats “Metal”,
“Metal” beats “Wood”
