In architecture, the ball on the gatepost can also be used to adjust the proportion and visual effect, and increase the three-dimensional sense and fullness of the building. In addition, in some religious buildings, the ball on the gatepost is also symbolic. For example, in Christianity, the ball represents the salvation and omnipotent authority of Jesus Christ.
In a word, the ball on the goalpost has different meanings and functions in different cultures and times, which need to be analyzed in detail.