The Sui dynasty was a short-lived imperial one. Preceded by the Southern and Northern dynasties, it unified China after more than a century of north- south division.
It was followed by the Tang dynasty, which was founded by the Li family. Li Yuan, the first emperor of the dynasty, saw China expand to become the most powerful nation in the world. During this time, Buddhism reached its peak and Chinese poetry flourished.
Most significant for feng shui was the building of the Grand Canal, also known as the Beijing-Hangzhou Grand Canal. A Unesco World Heritage Site, it is the longest canal or artificial river. Starting at Beijing, it passes through Tianjin and the provinces of Hebei, Shandong, Jiangsu and Zhejiang to Hangzhou, linking the Yellow and Yangtze rivers. The oldest parts of the canal date from 500BC, and the various sections were finally combined during the Sui dynasty (581-618AD).
Feng shui flourished during the Tang era and many well-known masters were recognized for their contributions. Wu Zetian became the only empress in Chinese history during the Tang era.
Feng shui places great emphasis on rivers, ponds and lakes and those living in the vicinity of the canal enjoyed prosperity.
However, the man-made canal did indeed hurt the dragon energy of the earth and caused instability to the region. The canal is 1,776 kilometers long and its safety was often threatened by periodic flooding of the adjacent Yellow River. The Three Gorges Dam and other structures caused instability not only to the Earth's surface but also to its inner crust.
As a result, bad feng shui unleashed unkind energies, and the flow of water through the canal and dams was too strong, forcing it to divert from its original course and cause great damage.
Yin energy accumulated in previous dynasties during wartime burst out to harm the yang energy.
Kerby Kuek has published 15 books on feng shui, inner alchemy, Taoism and metaphysics. He can be contacted at www.kerbykuek.com