When a Yang Wood (甲) Day Master encounters 比肩 (Companion) in any pillar of the BaZi chart, the configuration falls into the 比劫 (Self / Friend) category — companions and rivals — same-element relations to the day master. strengthens the day master and indicates peers, friends, siblings, business partners, and competitive same-level dynamics. Same-element / same-polarity peer relation; the Yang Wood register is reinforced by another instance of itself.
Configuration
- Day Master: 甲 (Yang Wood, Towering Tree) — wood element, yang polarity
- Ten God: 比肩 (Companion)
- Category: 比劫 — Self / Friend
- Element relation: same element, same polarity
Self / Friend register for Yang Wood Day Masters
Companions and rivals — same-element relations to the Day Master. Strengthens the Day Master and indicates peers, friends, siblings, business partners, and competitive same-level dynamics. For a Yang Wood Day Master specifically, the 比肩 configuration amplifies the Day Master register, supporting peer-level cooperation or competition.
How to read 甲日主見比肩 in a chart
The configuration activates whenever 比肩 appears in the year, month, or hour pillar of a chart with a Yang Wood day pillar. (The Yang Wood day stem itself is what makes the chart a "Yang Wood Day Master chart" — Ten God relationships are calculated relative to this Day Master.) The configuration's strength depends on how many pillars carry the Ten God, where in the chart it sits (year vs. month vs. hour), and whether the underlying earthly branches support or constrain the Ten God's element.
Why generic Yang Wood Companion interpretation fails
The 比肩 configuration is one structural feature of a BaZi chart, not the whole chart. Whether 比肩 helps or harms a specific Yang Wood Day Master depends on the chart's elemental balance, the Useful God, the strength of the Day Master itself, and the luck pillar currently operating. The same configuration can be highly favourable for one Yang Wood chart (where the Ten God supplies what the chart needs) and challenging for another (where it amplifies what's already excessive). Master Sean Chan’s BaZi consultation reads the full chart against your specific question.