The Six Kinds of Dream in Classical China
Before there was a dream dictionary, there was a filing system. The Rites of Zhou, describing the offices of the early Zhou court, lists a royal official whose job was to sort dreams into six kinds. Knowing which of the six you had is the step most modern dream-readers skip — and it changes everything about how seriously to take the dream.
An official post at the Zhou court
The Rites of Zhou (Zhouli), a text laying out the bureaucracy of the early Zhou state, names a Diviner of Dreams among the spring offices. His task was to read "the auspicious and inauspicious of the six dreams" against the positions of the sun, moon, and stars, and to report on them through the year.
That detail is easy to skim past, but it is the whole point: dreams were treated as a category of evidence worth a salaried specialist, sorted before they were interpreted. You don't interpret a dream first. You classify it.
The six, one by one
The names are tight. The zheng dream is the calm one that simply arrives, with nothing stirring it. The e dream is the dream of shock — a jolt, a dread. The si dream is the dream of longing, of someone or something you were thinking of by day. The wu dream replays what you were talking about while awake. The xi dream is the dream of joy. The ju dream is the dream of fear.
The Han commentator Zheng Xuan glossed each in a line: the calm dream comes when nothing has moved you; the longing dream from daytime thought; the fear dream from being afraid. Plain causes, plainly named.
Why the label does the work
The category tells you how literally to read the thing. A ju, or fear, dream of being chased is flagged, in effect, as your nerves talking — not a forecast to act on. A si, or longing, dream of a person is filed as your own missing them, not as a message from them. Sort the dream correctly and half the false alarms vanish.
This is the part the folk "dream X, get Y" tradition tends to drop. The omen books jump straight to the verdict; the older classification asks first whether the dream was even the kind that carries an omen, or just the kind that carries a mood.
The Liezi keeps the same six
The Daoist text Liezi, in its King Mu of Zhou chapter, runs the same scheme and adds a frame for it. Waking life, it says, has eight signs and sleep has six "weathers" — the same six dreams. And it offers the mechanism: "what the spirit meets becomes a dream; what the body contacts becomes an event."
That line is the quiet thesis under the whole list. A dream is what the mind brushes against while the body lies still; classifying it is just naming which kind of contact it was.
Using the six today
You don't need a court diviner to use this. Before reading a dream as a sign, ask which of the six it was. Were you simply afraid (ju), missing someone (si), chewing on a waking worry (wu), or did it arrive out of a still mind (zheng)? Only the last really invites the omen reading at all.
It is an old idea that holds up well: most dreams are the mind digesting the day, and only a few are worth treating as anything more. The six-fold sort is a built-in filter against reading too much into the wrong kind of dream.