From the earliest time the signs of the Ba Gua have provided both spiritual and practical guidance. The author of the signs has not only revealed the evolving nature of the interaction of yin and yang with amazing clarity but has formulated this revelation in manner that is mechanically accessible. Whether one utilizes the coins and sticks of the oracle, cycles and paths of sky and earth, or predicates martial, meditative or theoretical practices, the eternal patterns of the Ba Gua are truly an expression of the Tao beyond simple comment and summation.
What could be more modern than computers? We have finally unlocked the potential of the age old idea known to everyone as yin and yang. The Ho Tu was the legendary basis for the Ba Gua, the 8 symbols or "octal factors of zeros and ones" seen in the I Ching and on every luopan. Later, once generations of scholars achieved a comprehensive understanding of the pattern, the Lo Shu was discovered on the back of turtle.
These Early and Later Heaven patterns, as well as the Change between the patterns form the basis of many successful esoteric acupuncture patterns including the Hygeia's Bowl Pattern.
Traditional philosophy explains how the 8 Signs arose from the Si Xiang, the 4 Phenomena.
Chien is the expansive sky or heavens. It is the epitome of yang energy and the Father of other three yang trigrams. It's element is Metal and it's place is in the South and Northwest.
Kun is the receptive earth. It is the epitome of yin energy and the Mother of other three yin trigrams. It's element is Earth and it's place is in the North and Southwest.
Zhen is the thunder rising up from the earth. It is the Eldest Child of Yang. It's element is Wood and it's place is in the Northeast and East.
Xun is gentle yet penetrating wind through the trees. It is the Eldest Child of Yin. It's element is Wood and it's place is in the Southeast and Southwest.
Kan is dangerous. It is the Middle Child of Yang. It's element is Water and it's place is in the West and North.
Li is the bright fire. It is the Middle Child of Yin. It's element is Fire and it's place is in the East and South.
Gen is stillness. It is the Youngest Child of Yang. It's element is Earth and it's place is in the Northwest and Northeast.
Dui is the lake or marshland. It is the Youngest Child of Yin. It's element is Metal and it's place is in the Southwest and West.