There are many symbols of longevity; one of these is Wu Lou, which can bring a profusion of blessings into the home. This special bottle gourd has been a symbol of longevity, good health, and prosperity for many centuries. The Wu Lou, also known as the Hu Lu or calabash is an important tool used in enhancing the effects of Feng Shui.

The shape itself of the Wu Lou plays an important role in its image; it is a depiction of heaven and earth unified. The top half of the gourd symbolizes heaven, and the bottom half is earth. The use of the gourd by humans indicates the harmony between earth, heaven and humanity.

The WuLou or HuLu is also said to have the ability to absorb bad chi, for the reason that Taoist monks use the gourd to incarcerate evil spirits. According to Chinese mythology, monks and deities of the Taoist belief made use of the gourd, trapping evil presences inside to prevent them from causing misdemeanour. This is where the Wu Lou got the ideology of being able to absorb negative chi in your surrounding.