Choosing a day means choosing auspiciousness, also called looking at the day. Choosing auspiciousness is a subjective behavior of human beings looking for and yearning for a peaceful and auspicious living environment for the needs of survival. The purpose of choosing auspiciousness is to seek good fortune and avoid evil. It is an effort made by human beings to choose and use favorable conditions to avoid and overcome unfavorable factors in order to obtain auspiciousness and peace, immediate benefits and distant harms. This is also human nature or instinct. We use wisdom and experience to find and determine the appropriate time and space for various activities in the world. The key is to fully grasp the timely opportunities created by the harmonious relationship between weather, location, people and the above three. At the same time, choosing auspiciousness can also satisfy people's psychological needs and increase people's confidence and determination.
Therefore, it is popular to choose a good day when it comes to matters such as the start of a project, the opening of a shop, a wedding, a funeral, or a long trip. It is nothing more than the hope that there will be a happy and auspicious result for everyone. The custom of choosing auspiciousness is a common custom in our country. It is a traditional culture with a long history. It has a very extensive cultural connotation and has attracted our attention and research. Choosing an auspicious day is basically to find and determine the suitable time and space for various activities in the world, and to fully grasp the time, location, and people. Suitable opportunities created by harmony and the harmonious relationship between them can achieve the result of seeking good luck, avoiding bad luck, and achieving good luck. It invades and penetrates into the depths of people's hearts, and then transforms into people's subconscious mind, invisibly strengthening the Power and control enrich people's lives, and the custom of choosing auspiciousness is passed down from generation to generation. It has been continuously revived and popularized through human society. In today's social life, the number 8 is a homophonic pronunciation, which means prosperity and auspiciousness. Many people like this number when choosing license plates and phone numbers. We don’t care about its actual value; but the user’s original intention is to hope for good fortune and prosperity. Therefore, we are accustomed to choosing auspicious days and auspicious times for important matters.