Walking Marriage (走婚) is called "sensen" in the Mosuo (摩梭) language, meaning simply "to walk back and forth" — going by night is walking, returning by morning is walking. It is the marriage form that accompanies the Mosuo matrilineal family: a man does not take a wife, a woman does not marry out; each lover lives in his or her own mother's home, the man visits the woman's house by night, returns to his own at dawn, and any children are raised by the mother's household. It is neither "promiscuous sex" nor "polygamy," but a complete and self-disciplined family system.

How Walking Marriage "Walks": From Secret to Open

Mosuo courtship usually begins in secret and only later becomes open. During the secret period a young man may visit only at night, and must give a signal — the cry of a strange bird, the lone call of a long worm, or a pebble tossed onto the roof. Only when the girl hears the agreed signal will she open the log-plank door. If the relationship has not yet reached the point of certainty, the girl may test him — the door bolt and the bar may be reinforced, and then the young man cannot get in. On the Sichuan side, Mosuo people call this nightly slipping through a gap in the log wall "scaling the logs."

To get into the "flower room" a man needed some real skill. By tradition the young men had their own methods: by day they would gather cracked pinecones from the hillside, knead rice balls into the cracks, and hurl them at any fierce watchdog, which would then busy itself gnawing the cone and stop barking. Mosuo front doors are made of thick planks and open with a hoarse, grating sound; a prepared young man would pour a little sesame oil onto the hinge so the door would not "give him away." A waist knife was used to lever open the interior bar through the crack. A young man who could not enter the flower room had to cling to the log wall like a "big gecko," still on guard against the dogs — to be bitten by a hound instead of succeeding in the visit became a joke retold across several villages.

Once the relationship is open, there is no more need to keep night watch: he may enter the woman's home at dusk, share the evening meal, and even work alongside her family. But however deep the feeling, Walking Marriage is always "arriving at dusk and returning at dawn."

Why the "Shyness": The Other Side of Walking Marriage

Many people imagine Walking Marriage means "come and go as you please." In fact the Mosuo are remarkably disciplined about it. The Mosuo language has almost no vulgar curses, and abusive words referring to male and female genitals are unthinkable in Mosuo thinking — because within the household, brothers and sisters of either sex are forbidden to discuss anything sexual. One Hong Kong scholar described this culture as a "shame culture," arguing that what it guards against is not relations between men and women but sexual relations among blood kin of the opposite sex.

Precisely because love and sex cannot be spoken of at home, and the young have no public space of their own, Walking Marriage can only happen at night — going to the woman's room to court, hurrying back at dawn, keeping both families in the dark until the relationship becomes open. So Walking Marriage does not necessarily mean a sexual relationship; first of all it is the only space Mosuo young people have for romance. Mosuo lovers always come at dusk and leave at dawn, precisely for fear of being seen by relatives.

The Family Behind Walking Marriage: Each Belongs to Their Own Home

Walking Marriage has endured for a millennium because the matrilineal family is its foundation. Each partner belongs to their own mother's household; production and labour happen in the mother's home, and both sides are economically and emotionally independent, with no relationship of possession. Any children are raised by the mother's side. Thus the two people decide how long to stay together solely by the depth of their feeling, with no constraint from anything outside emotion.

Elders never interfere with the young's Walking Marriage: rich or powerful, from a distinguished clan or not, it is all still Walking Marriage, and property and reputation after the visit remain with each person's own family, having little to do with the partners themselves. In this structure the uncle's role is special: a man raises his sisters' children, while his own children are raised by the uncle on the other side; the roles of father and uncle are swapped. The woman who manages the household's finances is called the "yimi dabu," and the men who go off with horse caravans on trade hand their money to her.

Walking Marriage Today: Continuity in the Midst of Change

The Walking Marriage system is changing. As households in the tourist areas have shrunk into smaller units, a patriarchal tilt has begun to rise. The young now have bars and teahouses for courting and no longer need to "scale the logs." Some women have gone away to work and formed families there, and the men who cannot leave increasingly have nowhere to walk to, finally taking a wife and having children. One detail recorded in the literature stands out as the beginning of upheaval: across the whole Yongning Mosuo region, the school enrolment rate for boys is higher than for girls.

But the matrilineal family and Walking Marriage remain the mainstream across the Mosuo region. They sidestep the common troubles of marriage — property disputes, conflicts between mother-in-law and daughter-in-law, quarrels between spouses — and have proven over 1,600 years to be a stable, self-consistent family model.

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