The Ten Thousand Year Calendar is the next most essential item after the Luo Pan in the practice of Feng Shui. In BaZi, it is the "bible", without which plotting a chart is not possible as it provides the bridge between the Western (Gregorian) Calendar and the Chinese Xia Calendar, which comprises the Lunar and the Solar Calendars. What You'll • Comprehensive references for Feng Shui, Chinese Astrology, and Yi Jing - such as Zi Wei Dou Shu (Purple Star) Astrology Reference Charts, BaZi (Four Pillars of Destiny) Heavenly Stems and Earthly Branches • Xuan Kong Nine Palace Flying Star Charts for all 9 Periods • Yearly, Monthly and Daily Flying Stars Charts • Quick Reference Chart for Advanced Water Feng Shui Formulas