Grand Duke – Tai Sui 太岁

Tai Sui is also known as Tai Sui Xing Jun (太岁星君) or Sui Jun (岁君) and originated in the chinese astronomy and astrology as a help to calculate the chinese zodiacs. Ancient daoist scholars found out that Jupiter takes about 11.86 years to circle around the sun once. They devided the orbital sphere of Jupiter around the sun into 12 parts as subject to the 12 Earth branches.  A day was also devided into 12 hours (12 times 2 hours).

Since Jupiter passes the 12 sections in a year, the scholars created the 12 astrological signs. Because the Jupiter takes 11,86 years to circle ths sun and not exactly 12 years, there will be a noticeable inaccuracy to calculate the zodiac signs after some years.

Tai Sui was created as an imaginary “Jupiter” to correct the inaccuracy of the 12 divisions and Jupiter’s orbit, so that one circle was exactly 12 years. This made the calculation of the zodiac signs more accurate. Every year on Li-Chun (立春), the beginning of spring, Tai Sui enters a new orbit and the Tai Sui Diety changes. In Chinese culture men created gods and deities, whereas, in the West, it’s the reverse. They often add mysticism to things they can observe but not explain.