According to the explanation of geomantic omen, whether crabs appear in the layout of geomantic omen depends on their different performances such as quantity and pattern. If the number is big and fat, it will bring wealth and good luck. If you hold a crab in your hand, it means that people will meet good luck and new opportunities. But if the crab dies or is caught, it will be bad, which will bring misfortune such as loss of wealth and unfavorable career.
In a word, the crab is a creature with special symbolic significance in Feng Shui, always with a certain mysterious atmosphere. When people encounter crabs, they need to analyze them carefully and consider their quantity, shape and other factors comprehensively to determine the meaning they represent. Therefore, we need to carefully analyze its implied meaning according to the specific situation and make corresponding adjustments.