BaZi, also known as the Four Pillars of Destiny, is the traits assigned to the year, month, day, and hour of your birth. These traits help you further determine what your strengths and weaknesses are. Understanding your four pillars can help guide you more effectively. Dean French has been studying Feng Shui and Chinese astrology for decades, taking inspiration from several different schools of thought including 8 Mansions Feng Shui, San He, and more.