What does it mean to burn five sticks of incense in the five sides of the cemetery?

Generally, few people burn five sticks of incense. It is said that it is dedicated to the dragon gods of five places and five realms. Generally speaking, there are only three fragrances and one fragrance at home: for the purpose of calming the mind and for the landlord and the god of wealth. Three fragrances: praying to God, worshipping Buddha and offering sacrifices. In most cases, three sticks of incense (one row) are used. Six incense sticks: Sincere repentance. Nine sticks of incense: use it when it is important, and use it with caution in most cases. Twelve incense: please use it by the gods and buddhas, and it is difficult to solve evil. It's for special occasions.