What is the function of the "water sign" placed at the entrance of the hotel?

It turns out that water stamps were used by shopkeepers in the old days to temporarily register accounts or take notes, usually wooden boards or thin iron plates painted white or black. If it is white, it can also be called "pink card". Water signs are usually hung on the walls of shops, which record some notices of shops or hotels, reminding or telling customers something, such as catalogues and prices. And it is a kind of billboard. "Water brand" existed long ago, but it was accepted by later generations and widely circulated, although it was impossible to test any dynasty or generation. There is a saying in the third compromise of the Yuan zaju "Poem of Breaking the Wind": "If you are afraid of guests coming, just write it on the water sign until I come back." The sixty-first chapter of A Dream of Red Mansions also wrote: "Write all the vegetables in the world with water and eat them every day." It can be seen that water brands have long been accepted and widely used. Now the use of water stamps has become more and more extensive, not only in hotels, but also in the notebooks of shopkeepers. At present, many indicative signs at the entrance of shopping malls, office buildings and hospitals are marked with information such as commodity areas, units and floors where departments are located, which are all functions of water signs. In addition, the image signboard (water sign) in the office building is mainly used to display the corporate image and mark the corporate positioning, which has become an important part of corporate culture. It seems that a small water brand has been carried forward and has a wider practical significance. Door gods have a very long history. According to Shan Hai Jing, there is a crescent mountain in the vast sea. There is a big peach tree on the hill. There is a ghost gate in the northeast of Taozhi. There are two gods guarding the door, one is Shen Tu and the other is Lei Yu. Their duty is to keep an eye on those ghosts that harm people. Once they are found, they will be tied up with reeds and thrown to the tiger at the foot of the mountain. Even the Yellow Emperor showed respect for them, painting portraits of Shen Tu, Lei Yu and tigers on doors and hanging reed ropes to punish those ghosts who hurt human beings. Later, The Classic of Mountains and Seas was handed down, believing that Shen Tu, Lei Yu, tigers and reed ropes were used to ward off evil spirits. People believe in door gods, and believe that pasting portraits of door gods can ward off evil spirits and bring peace to life. However, the image of the gatekeeper has gradually developed. In addition to Harmony, Zhong Kui appeared in the Tang Dynasty, and Weichi Gong appeared after the Yuan Dynasty. Taoism worships dragons and white tigers, and some areas believe in Zhao Yun, Sun Bin and Pang Juan. In other places, door gods are divided into three categories, namely, learning door gods, martial arts door gods and praying door gods. The door gods painted some civil servants in royal robes, such as Tianguan, Xiantong, Liu Haichan and Songzi Empress. The goalkeeper is the image of an officer, such as Qin Qiong and Weichi Gong. Praying for the goalkeeper is the three stars of blessing, wealth and longevity. Although the door gods Shen Tu and Lei Yu did not come from the same dynasty, and the legends behind them were different, people believed in the same spirit. Among them, the most influential ones are Japan, Zhong Kui and Weichi Gong. Zhong Kui is regarded as an expert in ghost hunting, while Qin Qiong and Weichi Gong are closely related to the story of Emperor Taizong. There are many legends about them among the people, some of which are even circulated as historical stories. With the development and progress of the times, the role of door gods is not only to ward off evil spirits and avoid disasters, but some people also use door gods to express their expectations for fame and fortune. Since the Ming Dynasty, the words "Jue, deer, bat, happiness, treasure, horse, bottle, saddle" have often been written on some statues of Wumen to express people's good wishes. There are fewer and fewer worshippers in contemporary society, and their yearning for a better life has been expressed in other forms, but worshippers occupy a very important position in China's traditional folk customs.