The pier stone is placed on the bottom shaft of the gate to support the rotating shaft of the gate. The door pillow is extended outward and made into a drum shape, which is called a drum-holding stone. The stone carving and drum-hugging stone is an indispensable part and decoration part of the traditional building gate.
According to legend, in order to show off their brilliant achievements, the victorious generals in ancient times placed drums at their doorsteps. Later, it gradually evolved into the practice of holding drum stones instead of war drums. Hold the drum stone, that is, beat the drum, rise to the church, and listen to politics. Generally, it can only be placed in front of the yamen or eunuch's house, and there are also temples. Many modern villas will also be decorated with drum stones, which is unique.