It is rainy in Sichuan, and Chongqing (once belonged to Sichuan province) is known as the "Foggy City", so people there like to eat chili peppers to remove moisture, and they are also prone to arthritis. I think this is closely related to Sichuan's proximity to the Yangtze River.
Long periods of rain and frequent fog make it difficult for the sun to come out. Occasionally, there are sunny days when the sun comes out, which is considered a very rare thing. The dogs there also find it strange and regard the sun as a monster, barking wildly at it. This is the origin of the idiom "In Sichuan dogs bark at the sun", which is used to metaphorically describe the phenomenon of one who has seen less is apt to be puzzled by more.
Originally, when the sun rises the sky lightens, and when the sun sets, it gets dark, which are common things. However due to the special conditions in the Sichuan Basin, they have transformed into unique and special things. From the perspective of the whole year, foggy and cloudy days are still a minority, individual phenomena, and unique things. However, in the Sichuan Basin, they have become a common, normal, and universal phenomenon. Therefore, for dogs that cannot think abstractly, it is no wonder that they bark at the sun.
Dogs in Sichaun place can bark at the sun, but when people understand things, they cannot but pay attention to the principle of mutual transformation between commonness and individuality. They cannot only look at the commonness, regardless of the specific conditions of each region. We should not have our view overshadowed by the trivial, only start from the situation of our own region and unit, without seeing the regularity of the overall development of things.
四川那个地方多雨，重庆被称为“雾都”，所以那里的人喜欢吃辣椒来去除湿气，那里的人也容易得关节炎。我想这与四川靠近长江是有很大关系的。
长时间阴雨，还经常起雾，太阳难得出来，偶尔有晴天太阳出来的日子，竟被视为一种很稀罕的事情，那里的狗也觉得稀奇，竟把这太阳当作怪物，冲着太阳狂叫。这就是成语“蜀犬吠日”的由来，用来比喻少见多怪。
本来日出天亮、日落天黑这是共性的东西，但由于在四川盆地特殊的条件下，则转化为个性的东西、特殊的事情；而本来雾天、阴天从一年整个情况来看，毕竟是少数，是个别现象，是个性的东西，但在四川盆地却变成共性的、正常的、普遍的现象，因此对于不能进行抽象思维的狗来说，难怪它一见到日出就要汪汪乱叫了。
蜀犬可以吠日，但人们在认识事物的时候，却不能不注意到共性与个性相互转化的原理，既不能只看共性，而不顾各地区的具体情况，也不能一叶障目不见泰山，只从本地区、本单位的情况出发，而看不到事物整体发展的规律性。
