Ji己

The glyph of Ji is a bent thread — its root sense the loose end of silk, later borrowed both for the stem and for the word "self": "self-restraint" and "soulmate (one who knows my self)" both descend from it. The Shuowen files it, like Wu, under "the Central Palace."

Its element image is Yin Earth: the field, the tilled plot, moist fertile loam. Wu and Ji share the center yet are different earths — Wu the dam that holds water back, Ji the paddy that grows the rice. One governs holding; the other, nurturing.

Ji Earth is low, moist and balanced, borrowing strength from the four Earth months, loving Bing Fire overhead and fearing only waterlogged swamp. Yin Earth's gift is absorption: any seed that falls is caught, any root that reaches is given room.

The Di Tian Sui: "Ji Earth, low and moist, central, upright, storing; it worries not at Wood's abundance, nor fears Water's madness." The wet field has a strange composure — however rampant the Wood, roots are welcome (Wood lives off Earth); however wild the Water, damp soil drinks it without breaching. For sheer capacity to contain, Ji ranks first of the ten.

Jia combines with Ji into Earth — the "combination of uprightness," the steadiest and most mutual of the five pairs: the tree gains ground to stand on, the soil gains a root-net that keeps it from washing away.

Like Wu, Ji sits at the center outside the four stem clashes. Its dangers are not collision but congestion and submersion: too much Earth clogs (call Jia Wood's plough), too much Water turns field into marsh (call Wu's levee and Bing's sun).

On the day stem Ji is the Ji Earth Day Master — the gardener personality, read fully on that page. Elsewhere by Ten God: to Gui Water, Seven Killings (mud clouding the clear spring — Gui's least favorite guest); to Xin Metal, Indirect Resource (rich soil bearing fine metal); to Jia Wood, Direct Wealth and combination partner both — for a Jia Day Master, Ji tends to bring money luck and marriage luck through the same door.

Ji's classic in-chart job is bedding roots: weak Jia or Yi planted in Ji thrives like seedlings in loam. In a scorched chart, moist Ji also dims Fire and preserves Metal — one character, two rescues.

Sixth in order, Ji sees little ordinal use — its cultural weight rides almost entirely on "self": "master the self," "know self and other," "a self no longer one's own." No other stem was drafted into philosophy so completely.

In the cycle, Ji years follow Wu years under the same Earth phase; "Wu-Ji" as a pair still denotes central Earth — traditional medicine assigns the spleen and stomach to Wu-Ji Earth to this day.