Encompassing colorful contents, brick carving is a feast for the eyes. Standing at the top of the roof, this Ridge Decoration with Cod Fish Pattern can play the role of lightning rod. The people of Huizhou use similar article of steel needle to penetrate into its naris. At a remote distance, it looks like the beard. This steel needle goes down to the ground to form a simple lightning rod. As one of the nine sons of dragon, it is the carrier of expectation of people of a promising future. In the age of imperial examinations, the Number One Scholar stood on the palace stone step carved with cod fish to wait for the examination result when the list of successful candidates was released. Thus, hitting the top position in the list is called holding the palm. The ridge decoration contains the traditional meaning of fire prevention and disaster avoidance. Meanwhile, due to its location on the top of the roof, it carries the beautiful wish of expecting descendants to rank top in the imperial examinations.