The Marriage Palace, fuqi gong, is one of the smallest areas the twelve palace system names, the narrow strip at the outer corner of each eye between the eye itself and the temple's hairline, and its reading is correspondingly narrow and specific rather than broad. Where palaces like the Life Palace or the Wealth Palace are read for an overall quality, fullness, breadth, color, the Marriage Palace is read almost entirely for the absence or presence of marks, scars, moles or deep lines at that one small corner, which the tradition reads as a caution about instability or conflict in marriage and romantic partnership specifically. Smooth, unmarked skin there is read as a sign of a stable, harmonious marriage, a reading built on absence rather than on any positive feature the way most of the other palaces work.
That narrower method fits the palace's narrower subject. Marriage in the system's own logic is read as a single relationship rather than a whole domain of fortune the way career or wealth are, so the corresponding palace occupies a correspondingly small piece of the face and a correspondingly simple reading method, watching for damage rather than assessing shape or fullness the way the system's larger palaces do.