2. Moreover, the leaf of the copperhead snake is in the shape of a circular shield, like a copper coin, with a long handle and wavy edges. In summer and autumn, small yellow-green flowers bloom, like ancient copper coins, so the copperhead snake also symbolizes reunion and good luck. Generally speaking, green alum is mostly raised by water, but in Feng Shui, there is a saying that "the mountain is the master and the water is the master of wealth", that is to say, in Feng Shui, water is wealth, and the combination of green alum and water has good fortune, which is conducive to the wealth of houses.