It is widely accepted that timing plays a large part in a person’s successes and failures. We sometimes say that a person was simply “in the right place at the right time”. If a person comes into contact with the right people and the right conditions, they can take the shortest possible route to fortune and glory.
The opposite is also true.
In Chinese Metaphysics, the Heavens dictate the time, the Earth dictates the place and the Man dictates the people who can offer one the keys to victory. When we want to know when there may be opportunities, we must consider and understand the role of The Heaven 天時 and the 9 Stars.
Qi Men Dun Jia itself has many ties to astronomy and celestial bodies, but the 9 Stars make their connection to the night sky explicit. The 9 Stars are derived from celestial bodies found in the Big Dipper, a constellation made up of the brightest stars from the Ursa Major (Great Bear) constellation.

The stars located in this constellation are arguably some of the most culturally important as they feature in many fables and belief systems.
Throughout history, people have noticed and written about this constellation under different names – although most commonly associating it with a bear. Some scholars theorise that this similarity may be based on a common oral tradition which stretches back some 13,000 years. The Big Dipper asterism found in this constellation is so called for its resemblance to a plough or ladle.
The ancient Chinese developed an acute interest in the Big Dipper, referring to its contents as the Seven Stars of the Northern Dipper (Bei Dou Qi Xing 北斗七星). They had practical uses for them, as the movement of the stars helped them ascertain the seasons. Many Chinese spiritual beliefs arose about the stars and their connection to the changing seasons of the Earth. The ancient Chinese worshipped the night sky, believing that gods lived in its infinite volume. They saw the stars of Ursa Major as divine beings.
Like the 10 Deities, the 9 Stars forms a complex history that is tightly intertwined with many aspects of Chinese culture and folk religions. They are featured in many different parts of Chinese Metaphysics, making appearances in Feng Shui, BaZi, and, of course, Qi Men Dun Jia.
Hope that this sharing about the history let you have a better understanding. Let read more about the Big Dipper next.