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BaZi · 十神 比肩

Companion (比肩) — bi jian

Companion is your own element in your own polarity: the second of the ten gods and the simplest to state. It is you, reflected. Every peer, sibling, ally and competitor occupies this slot, and which of those they turn out to be is decided by the rest of the chart.

God
Companion 比肩
Group
Peer (比劫) — your own element
What it governs
your own kind — allies, peers and competitors

What Companion means

比肩 is the day master meeting itself. Same element, same polarity — for a Yang Wood day master, another Yang Wood. The classical readings follow the image exactly: Companions share your position, so they share your interests and they compete for the same things. Whether a given Companion behaves as a colleague or a rival is not determined by the god; it is determined by whether the chart needs the support.

This is the most relational of the ten gods. Where Wealth concerns resources and Officer concerns structure, Companion concerns the question of who else is in your position. Charts with strong Companion describe people for whom peers are a central fact of life: strong brotherhood and sibling dynamics, competitive peer groups, work that requires collaborators who are also equals.

The economic reading is the one that matters in practice. Companion and Rob Wealth both divide wealth — mathematically, generating the controlling element and earning are the same operation, and peers consume part of what you produce. This is why classical texts say a chart with strong Wealth needs its Companions under control: not because peers are bad, but because unchecked peers dilute the return on your own effort.

From the inside

From the inside, Companion feels like always having a yardstick. You know roughly where you stand relative to the people in your field, and the knowledge is not competitive in the hostile sense — it is more like a coordinate you cannot stop updating. You also have a specific and useful way of working: you would rather build alongside peers than above subordinates. What you often underestimate is how much of your best work has actually been done with other people, since from inside it feels like you did it alone.

Companion in each pillar

PositionHow it reads
Year pillarSiblings and early peers shape the childhood. Charts like this often describe a family with several children and an early sense of comparison.
Month pillarThe strongest position. Peers and partners are central to the career, and work is done in groups of equals rather than in hierarchies.
Day pillarThe spouse palace: traditionally read as a partner who is more like a peer than a complement, with the relationship organised around equality.
Hour pillarLater peers and collaborators; also read as children who grow into something closer to equals than dependants.
Position changes the reading more than the god does. The month pillar is the strongest position in the chart; the day branch is the spouse palace; the hour pillar covers later life.

Where Companion works for you

Where it costs you

Questions about Companion

What is Companion in BaZi?
Companion (比肩) is your day master's own element in the same polarity — for a Yang Wood day master, another Yang Wood. It represents peers, siblings, allies and competitors: everyone who occupies your position and competes for the same things.
What is the difference between Companion and Rob Wealth?
Both are the day master's own element. Companion is the same polarity and reads as a peer ally. Rob Wealth (劫财) is the opposite polarity and reads as rivalry — ambition that takes resources rather than sharing them.
Why do Companions dilute wealth in BaZi?
Wealth is the element the day master controls. Generating more of the day master's own element does not increase the revenue; it increases the number of claimants on the result. That is the mechanical basis for the classical caution about strong Companion charts.
Does Companion mean I will have siblings?
It is associated with siblings and early peer relationships, but not deterministically. In practice the god describes the structure of a person's relationships — how much of life happens alongside equals — rather than the size of their family of origin.

The other gods

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Traditional systems, written for self-reflection. Not a substitute for professional advice.