In the ceremony of worshipping heaven, the door of each house was hung with a mahogany sword. Wuyou got up early and hung the mahogany sword that Granny Moon had bought on the door. A mahogany sword was to exorcise evil spirits. On the day of worshipping heaven, all the souls would drift into the Immense Sea in all directions. So on the day of each year, the wooden swords which had been blessed were on sale on the streets, forming a scene in the Immense Sea.

Xiao Douya helped ...