Heavenly Stems (Tiān Gān / 天干)
The Ten Heavenly Stems are the celestial energy of the Chinese calendar. In Ba Zi, each pillar contains a Heavenly Stem that represents the active, visible energy of that dimension of your life. Your Day Master — the stem of your Day Pillar — is considered you in your Ba Zi chart.
Jia
Element: Wood
The towering tree. A natural leader, ambitious, expansive, and noble. Jia people are born pioneers — they see the big picture and charge ahead with confidence.
Yi
Element: Wood
The flowering vine. Graceful, adaptable, and persistent. Yi people grow around obstacles rather than through them, achieving their goals with quiet determination.
Bing
Element: Fire
The blazing sun. Warm, radiant, and generous. Bing people light up every room and naturally attract others with their charisma and optimism.
Ding
Element: Fire
The candle flame. Gentle, focused, and illuminating. Ding people bring warmth to those closest to them, burning steadily rather than fiercely.
Wu
Element: Earth
The great mountain. Solid, dependable, and trustworthy. Wu people are the foundation of any team — steady, unshakeable, and always reliable.
Ji
Element: Earth
The fertile soil. Nurturing, receptive, and wise. Ji people create the conditions for growth in others, making them excellent teachers and healers.
Geng
Element: Metal
The raw ore. Strong, determined, and unyielding. Geng people have an inner toughness that helps them cut through adversity with precision.
Xin
Element: Metal
The polished jade. Refined, elegant, and perceptive. Xin people have a keen eye for detail and beauty, excelling in craftsmanship and analysis.
Ren
Element: Water
The vast ocean. Deep, powerful, and free-flowing. Ren people have tremendous inner resources and the wisdom to navigate any situation.
Gui
Element: Water
The gentle rain. Intuitive, mysterious, and receptive. Gui people have a deep connection to the unseen, making them naturally psychic and creative.
Yin and Yang in the Stems
The ten Heavenly Stems are divided into five Yang and five Yin pairs, one for each element: