The hour of the Monkey, under the sign of Geng Metal—this is the 57th pillar of the 60 Jiazi cycle, a combination often described as 'the sword on the mountain.' If this is your birth hour, the final chapter of your life is written in pure, unyielding Metal. But what does that mean for your children, your career twilight, and the legacy you leave behind?

The Hour Stem: Geng Metal’s Late-Life Expression

The hour stem is Geng (庚), Yang Metal. In the human life cycle, the hour pillar rules the years after 46. Geng Metal is the energy of a blade, of cutting through, of decisive action. In later life, this translates into a person who becomes increasingly direct, principled, and sometimes sharply critical. You may find that in your fifties and beyond, you naturally gravitate toward roles that demand toughness: a judge, a surgeon, a leader who makes hard calls. The Geng stem wants results, not excuses. If your life earlier was more yielding, the hour pillar brings a hardening—a crystallization of character. The 《滴天髓》 says of Geng: "It is the metal of the axe, able to carve jade." In your later years, you are carving your final legacy, and you do so with precision.

The Hour Branch as Children Palace: Shen Monkey

The branch Shen (申) is the Children Palace (子女宫). Shen is the Monkey, a sign of cleverness, agility, and restlessness. As a palace for children, Shen suggests offspring who are intelligent, inventive, and perhaps a handful. They may travel extensively or have careers in technology, trade, or the arts. Shen contains Geng (Metal), Ren (Water), and Wu (Earth). The Water hidden within means your children may also be adaptable and resourceful, but the Earth gives them stability at the core. However, because Shen is Metal's own branch—the 'root' of Geng—there is a strong identification with your children. You see yourself in them. The dynamic can be intense: you expect a lot, because you gave a lot. Be mindful not to over-sharpen them with your own Metal edge.

Gan-Zhi Interaction Within the Hour Pillar

In this pillar, the stem Geng sits directly on the branch Shen. Shen is the 'living place' of Geng, meaning Geng is extremely at home. This is a form of the 'same stem-branch' combination (伏吟 in appearance, but actually Shen supports Geng strongly). There is no clash, no harm. Instead, the energy is concentrated. This gives great stamina and endurance in the later decades. However, because both are Metal, the pillar can become overly rigid. When Metal is too strong, it can cut relationships. The hidden Ren Water in Shen provides an outlet: it can channel Metal's sharpness into strategic thinking, like a sword that dips into water to cool. But if your chart lacks Fire or Water, the Geng-Shen hour can make you stubborn, almost immovable in your convictions. 《三命通会》 notes that Geng-Shen is a 'double metal' configuration that needs Fire to temper it, or else it becomes 'useless iron.'

The Hour Pillar and Life’s Final Third

Post-46, the hour pillar takes center stage. With Geng-Shen, this period is about consolidation of power and resources. You will likely engage in projects that require long-term planning and a no-nonsense approach. Financially, this pillar often brings stability from real estate, metals, or heavy industries. Health-wise, Geng Metal rules the lungs and large intestine. Watch for respiratory issues as you age—the Monkey's restless energy can lead to overwork. Emotionally, there is a tendency toward isolation: the sword stands alone. But this is also a time when you can become a mentor, sharpening younger minds. The phrase 'later life as a sharp blade' sums it up: you are still cutting, but hopefully with wisdom.

When the Hour Pillar is Your 用神 (Useful God)

If your Bazi needs Metal, the Geng-Shen hour is a treasure. It means your later years will be strong, supported by the very element you lack. You receive help from subordinates, children, and late-career opportunities. The Shen branch also brings networking and travel. People with a weak Day Master (especially Wood or Fire) who get Geng-Shen as a useful god can suddenly find their footing after 46. But if your chart already has too much Metal, or if it's a 'Useless God' (忌神), then the hour pillar becomes a burden. Then the later years may feel like a grind: too much competition, health issues from excess Metal, and children who are distant or demanding. To check this, use our Bazi chart to see if Metal is your ally or adversary.

The Classical '结局' Reading — What Kind of Ending?

Classical texts like the 《滴天髓》 interpret Geng-Shen hour as leading to a 'sharp and lonely' conclusion. The character 庚 is associated with the West, with autumn, with cutting. The 'ending' (结局) here is often one of achievement but isolation. Think of a retired general: respected, but living alone with memories. However, if Fire appears in the chart (especially Ding Fire, yin fire that can melt Metal into shape), the ending can be one of artistic mastery or spiritual depth. The Monkey also brings a trickster element: your ending may involve a sudden change, a relocation, or a final act of cleverness. If your hour pillar is Geng-Shen, ask yourself: Do I want a legacy of sharpness or of warmth? The chart will point to which.

大运 Transition into the Hour Pillar Territory

When your Greater Luck (大运) enters the hour pillar period (around age 46-60), you feel the full weight of this Metal energy. If your hour pillar is Geng-Shen, and the arriving luck pillar is also Metal, the energy is doubled. This can be a time of immense productivity if managed well, or burnout if not. For example, a Luck pillar like Geng-Yin (庚寅) will clash with the hour branch Shen (申) — Yin and Shen clash (寅申冲) — signaling upheaval in the home and with children. But if the luck brings Fire or Water, the transition smooths. It is crucial to see the entire bazi chart to understand whether the hour pillar's strength is balanced.

One YMYL Line: Pattern, Not Destiny

Remember, no single pillar seals your fate. The hour pillar shows a strong inclination, but your entire Bazi, your environment, and your choices shape the outcome. Use this knowledge for self-reflection, not fatalism. The Geng-Shen hour gives you a powerful tool; how you wield it is up to you.

For a deeper dive, explore our articles on the hour pillar and the Shen branch. Do not dismiss the potential for transformation through Fire and Water in your chart. The sword can be forged into a plowshare or a scalpel—the choice remains.

The Geng-Shen Hour Pillar: The Metal Tiger's Final Roar in Your Bazi Chart