The two of you, in one line each
- Yin Wood, the Vine 乙. Flexible and gentle. You find a way around anything and bring people along.
- Yang Metal, the Sword 庚. Decisive and loyal. You cut through noise and keep your word.
How Metal and Wood meet
Metal prunes Wood: the Yang Metal person tends to give the Yin Wood person's growth a clear edge, and the Yin Wood person tends to give the Yang Metal person something worth shaping.
In this pair Yang Metal does the shaping and Yin Wood does the softening. Yin Wood tends to bring people, patience and a way around the closed door that Yang Metal would rather push straight through.
From the Yang Metal side, pruning is not an attack. Shears tell a vine where to grow. Yang Metal tends to bring the straight answer and the decision while everyone else is still being polite. For Yin Wood, who often hears five opinions before forming their own, that clear edge can be a relief.
This is one of the five stem combinations (천간합, cheongan-hap) in saju teaching. Saju books often call 乙庚 the combination of kindness and duty (仁義之合), Wood standing for kindness and Metal for doing what is right, and read the pair as combining toward Metal.
Where it tends to flow
You two often split the world in a way that works. Yang Metal handles the landlord, the contract and the refund call. Yin Wood handles the neighbors, the group chat and the friend who needs lunch after a bad week.
Loyalty is a shared language. Yang Metal shows it by keeping their word, Yin Wood by keeping in touch, and over the years both tend to notice how reliably the other one has shown up.
Where it tends to rub
A blade is sharp on both sides. Yang Metal's honesty can land hard on Yin Wood, who tends to take on the mood of the room, and here the room is one person saying "that idea doesn't work." Yin Wood may agree to keep the peace and then quietly do it their own way, which to Yang Metal can look like a broken promise.
Yin Wood finds the way around things, which can frustrate someone who prefers the straight line. "Why didn't you just tell me?" tends to come up a lot.
Try this
- For Yang Metal: give the reason first, then one kind sentence, then the hard part. For Yin Wood: say your own answer out loud before asking what the other person thinks.
One piece of a full chart
A Day Master pair is one piece of a full chart. Each of you has seven more characters, and they can tilt this picture: a Yin Wood person with plenty of Metal elsewhere reads differently from one with almost none. Your day-pillar animals may combine or clash, Zi Wei reads each spouse palace, and synastry adds its own aspects.