Why are there bell towers and drum towers around some big temples? What's the argument?

Bell and drum towers are mainly used for warning and telling time. In ancient times, the Bell and Drum Tower rang twice in Yin Shi (from 3: 00 to 5: 00) and in the sub-city (19 to 2 1) respectively, and each time it rang from the sub-city until the next day in Yin Shi, which was the "morning bell and evening drum". "Tight eighteen, slow eighteen, slow eighteen" is a bell-ringing rhythm formed in some places under the influence of the bell-ringing tradition of temple bells and drums. Generally, it rings twice a day, once when the city gate is opened in the morning and once when the city gate is closed in the evening. Every time is "tight eighteen, slow eighteen, slow eighteen" and * * * fifty-four, always * * * one hundred times a day.

There is a bell and drum tower in the temple, which only appeared in the Tang Dynasty, and then gradually formed the tradition of "there must be a bell in the temple" (later Taoist temples followed suit and had a "Taoist bell"). The bell and drum tower in the temple draws on the model of the bell and drum tower in the palace, but at first it is different from the model of the east bell and drum tower in the west. The temple is often called "East Bell Collection", that is, the bell tower is opposite to the tower and the sutra depository. During the Ming and Qing Dynasties, it became very common for bell towers and drum towers to be arranged on the east and west sides of courtyard temples.

The bells in the temple are Brahma bells, which are mainly used as Buddhist instruments and instruments, and can be accompanied by percussion instruments when worshipping Buddha. On the Journey to the West, Tang Priest and the Monkey King went to Kannonji and saw the bell and drum tower in the temple. "See also that the Bell and Drum Tower is tall and the pagoda is majestic." The Bell and Drum Tower is an important building in the temple. After the Tang Priest entered the temple, he bowed down to the Buddha. At this time, a young monk in a temple was playing drums.

While the Monkey King is responsible for ringing the bell, "monk spread out his back, spread out his chest and looked at the golden statue kowtowing. Monks play drums and monkeys ring bells. Sanzang prostrated himself before the stage and prayed sincerely. After the prayer, the monk stopped beating the drum, but Monkey kept ringing the bell, either tightly or slowly, for a long time. The Taoist priest asked, "Why are you still ringing the bell after praying?" Monkey lost his clock pestle and said with a smile,' You don't know, I am a monk who rings the bell every day. At this time, the monks and nuns in the temple and the elders in the upper and lower rooms were disturbed. Hearing the bell, they all rushed out: "Are the barbarians ringing bells and drums here?" "