The "Four Pillars of Destiny," also known as BaZi, is a traditional Chinese astrology system that analyzes a person's destiny based on their birth date and time. It consists of four components: the year, month, day, and hour of birth, each represented by a Heavenly Stem and a Earthly Branch. These elements combine to reveal insights into an individual's personality, relationships, and life path. Each pillar corresponds to one of the five elements: Wood, Fire, Earth, Metal, and Water. The interactions between these elements and the Yin and Yang forces help practitioners interpret a person's strengths, weaknesses, and potential challenges. This system is often used for personal development and decision-making.