What does the eight treasures of arhat bed mean?

This "eight treasures" refers to eight utensils used by Taoism, also known as family heirlooms: a fan (a clock that Taoism thinks can bring back the dead), a fish drum (a piece that Taoism thinks can predict bad luck), a lotus flower (He Xiangu that Taoism thinks can cultivate one's morality), a gourd (Li Tieguai that Taoism thinks can help all beings), a sword (that Taoism thinks can suppress evil spirits) and a lotus flower. There are often carvings on Chinese classical furniture, such as arhat beds and antique bookshelves, which mainly mean good luck.