BaZi 1901 — Year of the Yin Metal Ox 辛丑

The Year Pillar is one of the four pillars in your BaZi natal chart, alongside the Month, Day, and Hour pillars. Of the four it carries the broadest, most environmental flavour — you can think of it as the elemental climate of the era you were born into, rather than the weather of any individual day.

For 1901, that pillar is 辛丑: the Heavenly Stem 辛 (Yin Metal) sitting over the Earthly Branch 丑 (the Ox). Two questions follow naturally: what does 辛 contribute, and what does 丑 contribute — and the same Year Pillar will read very differently depending on the Day Master it sits next to. The sections below walk through both pieces.

Yin Metal (辛) at the Year Pillar is ornamental metal — jewellery, fine wire, polished surface. 辛 calls for cleansing rather than forging: Yang Water (壬) is the classical pairing because it polishes Yin Metal’s surface. When 辛 sits at the year level, check whether the chart has clean Water to bring its qualities through.

For a deeper reading of how Yin Metal functions when it appears as the Day Master itself, see the Yin Metal Day Master entry.

The Earthly Branch 丑 (the Ox) is late winter — the transitional moment when frozen ground begins to thaw. Its primary flavour is Yin Earth, but it is famously a “wet earth” carrying hidden stems 己 (Yin Earth), 癸 (Yin Water), and 辛 (Yin Metal). At the Year Pillar, 丑 contributes earth that holds residual Water and a hint of Metal — complex rather than simple.

The classical reading consideration is the chart’s overall warmth: 丑 needs Fire to dry out the soil before its Earth quality becomes useful. Without Fire, the year reads as cold and damp.

In BaZi the twelve Earthly Branches form fixed pairings: every branch has exactly one combination partner (六合) and one clash partner (六沖). When a chart contains both members of a pair, the relationship transforms or destabilises that part of the chart. For year pillars, this matters most when reading 1901 against the Month, Day, or Hour Branches in someone’s chart.

Your Year Pillar takes on a different meaning depending on what your Day Master is. Below is the Ten God relationship between 1901’s Year Stem (辛) and each of the ten possible Day Masters. Find your Day Master in the table to see what 辛 represents to you.

The Year Pillar tells you something about the elemental backdrop of your life, but it is not the centre of your chart. Your Day Master — the Heavenly Stem in your Day Pillar — is what most BaZi readings rotate around. Two people born in 1901 can have very different Day Masters and very different lives, even though they share the same Year Pillar. This is also why people born 60 years apart with the same Jiazi (e.g. 1901 and 1961) share elemental conditions but lead different lives shaped by different Day Pillars and different luck cycles.

The descriptions on this page are generic commentary on what 辛丑 contributes at the year-pillar level. They are not a reading of any specific person’s chart. Practitioner-grade interpretation requires the four pillars together, the seasonal strength of the Day Master, the Ten Gods’ positioning, the auxiliary stars present, and the Luck Pillars currently active — all of which only emerge from a full chart cast against an individual birth date and time. There is no reading the Year Pillar in isolation that does justice to a real chart.

Important caveat on Li Chun: BaZi years run from Li Chun (立春), the precise astronomical moment when the Sun reaches ecliptic longitude 315°. For 1901 this falls at 1901-02-04 19:39 China Standard Time (UTC+8). Births before that exact moment are categorised under the previous BaZi year (1900 — 庚子). Always convert your local birth time to CST before interpreting a chart, especially if you were born within a few hours of Li Chun.