Bats are very auspicious creatures and if one ever flies into your home, you won’t want to do any harm to it cause it brings you luck! I need to say this to my friend Emma who stayed one Summer in our house in France and saw a bat flying across the lounge...
The bat is a symbol of good fortune because the word bian3 fu2 蝙蝠 sounds like luck “fu2”.
Two bats “shuang1 fu2” 双福 means double luck. A design of two bats with a scepter ru2 yi4 means "double happiness as wished".
Five bats “wu3 fu2” 五福 means Five Fortunes referring to Good Luck, Prosperity, Wealth, Happiness, Longevity.