The introduction of ear ringing during the Hai hour is as follows:
During the Hai hour (21:00-23:00), left ear ringing indicates great luck; right ear ringing indicates diet.
This means: During our Hai hour, if your left ear rings, it means everything will go well and you will have good fortune. Good things will happen, so no matter what you do now, you will surely get a good return. If during our Hai hour, your right ear rings, it means you should pay attention to your diet recently. Even if there are big meals, you must not overeat. Remember not to indulge in food, which could lead to stomach problems.
From this, we can see whether the ear ringing during the Hai hour is good or not. We need to check whether it is the left ear or the right ear ringing during the Hai hour.

The Hai hour is from 21:00 to 23:00. This is the time when the night is quiet, so it is also called "people's rest." The Hai hour is also known as "Yan Ye." In Wang Shifu's "The Western Chamber": "Who told you to enter someone's house at night, not for stealing."
Chinese ancients divided the day into twelve hours, each hour equal to two hours today. It is said that the ancients named each hour according to the activity times of the animals in the Chinese zodiac.
The system of twelve hours. It was already used in the Western Zhou dynasty. In the Han dynasty, they were named as midnight, rooster crowing, dawn, sunrise, meal time, half of the morning, midday, afternoon, late afternoon, sunset, dusk, and people's rest. They also used the twelve terrestrial branches to represent them, with midnight 23:00 to 1:00 being the Zi hour, 1:00 to 3:00 being the Chou hour, 3:00 to 5:00 being the Yin hour, and so on.

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