It is a folk custom in the old days that if there is any important matter to be done, it is necessary to choose an auspicious day. The most auspicious day chosen is the auspicious day of the zodiac. It is easiest to succeed on this day, which is consistent with the zodiac. The auspicious day corresponds to the bad day of the underworld. It is not suitable to do anything on this day, so be cautious in everything.
Looking at the almanac of the old society (commonly known as the old yellow calendar), under each day are marked: construction, elimination, full, peace, determination, persistence, success, harvest, destruction, danger, opening, The word "closed" indicates good or bad luck on that day. Its specific meaning is as follows:
Jianri: refers to the beginning before things are completed. It is suitable for establishing foundations, breaking ground, cutting axes, consecrating lights, and setting up seats. Everything else is not suitable.
Exception day: refers to the meaning of clearing. Suitable for vomiting the dead, cleaning, bathing, seeking medical treatment, burial, etc.
Manri: refers to the meaning of perfection. It is appropriate to do all festive things, and avoid doing all unlucky things.
Weekday: refers to smoothness. It can handle both happy and bad events.
Dingri: means that everything is determined. It is suitable for adoption, businessmen, visits, examinations, etc., but other inauspicious events are not suitable.
Zhiri: refers to being stubborn and unflexible in everything. All good and bad things should be avoided.
Chengri: means everything is accomplished. All matters of happiness and misfortune can be handled.
Close day: refers to the meaning of withdrawal and convergence. It is only appropriate to restrain, claim and bury. In addition, all bad things are not suitable.
Posun: refers to the meaning of rupture and breakthrough. Avoid doing any good or bad things. The punishment day refers to this day.
Dangerous Sun: You should be careful in everything. It can get things done but be careful, use it for big things but small things.
Opening date: It means the opening is smooth and feasible.
Closed Sun; refers to blockage. It can be restrained and buried, but nothing else is appropriate.