1n 1989, engineer and scientist Maurice Cotterell found a way of calculating the duration of long-term magnetic reversals on the Sun. Using this knowledge he was able to break the codes of the Sun-worshipping civilizations of the world, first the Mayas of Mexico, those of Tutankhamun of Egypt, the Viracochas of South America, the Ancient Chinese and now the European Celts. Their secret knowledge of the super-science of the Sun and the higher orders of spirituality enabled him to locate the Holy Grail. Maurice says these remarkable ancient stories explain why we live, why we die, what God is, what the soul is, and what Heaven is.
Chinese astrology is based on the traditional astronomy and calendars. The development of Chinese astrology is tied to that of astronomy, which came to flourish during the Han Dynasty (2nd century BC to 2nd century AD).
Chinese astrology has a close relation with Chinese philosophy (theory of the three harmony, heaven, earth and water) and uses the principles of yin and yang and concepts that are not found in Western astrology, such as the wu xing teachings, the 10 Celestial stems, the 12 Earthly Branches, the lunisolar calendar (moon calendar and sun calendar), and the time calculation after year, month, day and shichen
The 60-year cycle consists of two separate cycles interacting with each other. The first is the cycle of ten heavenly stems, namely the Five Elements (in order Wood, Fire, Earth, Metal, and Water) in their Yin and Yang forms.
The second is the cycle of the twelve Zodiac animal signs (生肖 shēngxiào) or Earthly Branches . They are in order as follows: the Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig. In Vietnam the rabbit is replaced by the cat.
This combination creates the 60-year cycle due to the least amount of years (least common multiple) it would take to get from Yang Wood Rat to its next iteration, which always starts with Yang Wood Rat and ends with Yin Water Pig. Since the zodiac animal cycle of 12 is divisible by two, every zodiac sign can only occur as either Yin or Yang: the Dragon is always yang, the snake is always yin, etc. The current cycle began in 1984 (as shown in "Table of the sixty-year calendar" below).
When trying to traverse the lunisolar calendar, an easy rule to follow is that years that end in an even number are yang, those that end with an odd number are yin. The cycle proceeds as follows: If the year ends in 0 it is Yang Metal. If the year ends in 1 it is Yin Metal. If the year ends in 2 it is Yang Water. If the year ends in 3 it is Yin Water. If the year ends in 4 it is Yang Wood. If the year ends in 5 it is Yin Wood. If the year ends in 6 it is Yang Fire. If the year ends in 7 it is Yin Fire. If the year ends in 8 it is Yang Earth. If the year ends in 9 it is Yin Earth.