[Yen] Numerology before the Song Dynasty used the year pillar as the core of destiny, so it was called Nian Ming and Da Ming. Later, it was changed to center on Rigan, which is called "self". Other stems and branches that have a life-or-death relationship with the "self" are called wealth, official, seal, food, etc. The Rigan is the Heavenly Stem among the branches of the day of birth. It is the positioning center among the four pillars. Without this positioning center, one would be at a loss in fortune-telling. Therefore, it is also called the Riyuan and the Sun Lord; it is referred to as "Shen", which means "self". The so-called "strong body and weak body" refers to the strength and weakness of the Japanese yen.
[Zhu] The word "Zhu" is a referential verb commonly used in essays, which means to express, represent, and determine. For example, "If the God of Food is strong, the owner is good at eating and singing" means: If a person is destined to have a strong God of Food, it means that this person can eat, drink, and likes to sing.
[Tai Sui] Tai Sui in folklore means that every year there is a different star king who controls the climate, luck, etc. of that year, with a cycle of sixty years. Tai Sui in numerology refers to the year's stems and branches, which determine the luck of the year through the interaction between the five elements, birth, restraint and punishment with the four pillars. The year of birth is Tai Sui for birth, and every subsequent year is Tai Sui for fleeting years.
[Flowing Years] Each year's change flows like water, which is what the so-called "Flowing Years" means. The fleeting year in numerology refers specifically to the year's branches and luck. The fleeting year and Tai Sui are actually the same concept, which is called "Sui" for short. Now in 2005, it is called the fleeting year Yiyou, or Tai Sui is in Yiyou.
[Great Luck] In addition to the fixed formula of the eight-character horoscope, numerology also introduces the concept of "luck", which makes our life journey undergo colorful and ups and downs changes. What changes every ten years is called the Grand Luck, and what changes every year is called the Minor Luck. Fortune telling generally only uses the Grand Luck, or "luck" for short.