The bagua

The Eight Trigrams of the I Ching

The eight trigrams are the smallest named figures in the I Ching. Learn them as reusable three-line structures, and the sixty-four hexagrams become far easier to read.

Updated April 1, 2026Produced by MahjongHouse

In short

The eight trigrams are the bagua: qian, kun, dui, li, zhen, xun, kan, and gen. Each is a three-line pattern that can appear as the lower or upper half of a hexagram.

Map of the eight trigrams of the I Ching with their names, line patterns, and their role as the upper and lower halves of hexagrams.
The bagua is the reusable layer inside the oracle: once the eight trigrams are familiar, the sixty-four hexagrams become combinations rather than isolated symbols.
Heaven Trigram: 乾 ☰

Qian is the all-yang trigram. It represents force, initiation, altitude, and concentrated creative movement.

Earth Trigram: 坤 ☷

Kun is the all-yin trigram. It represents receptivity, containment, support, and the ability to carry form.

Lake Trigram: 兌 ☱

Dui is open at the top and solid below. It often suggests exchange, openness, expression, and pleasure with structure beneath it.

Fire Trigram: 離 ☲

Li is solid above and below with openness in the middle. It often marks brightness, discernment, attachment, and what becomes visible.

Thunder Trigram: 震 ☳

Zhen begins with a solid line below and opens above. It often marks initiation, arousal, impact, and the first movement that breaks stillness.

Wind Trigram: 巽 ☴

Xun is open below and solid above. It often suggests penetration, gradual entry, diffusion, and influence that works by permeation.

Water Trigram: 坎 ☵

Kan is open above and below with solidity in the middle. It often points to depth, risk, flow, enclosure, and a passage through difficulty.

Mountain Trigram: 艮 ☶

Gen is open below and solid at the top. It often signals stillness, stopping, delimitation, and the moment when movement reaches a boundary.