The Essence of the Xici Shangzhuan: A Philosophical Inquiry into the Junzi's Settled Peace and the Order of the Yijing
This article offers a deep reading of the core proposition in the Xici Shangzhuan — 'What the junzi dwells in and finds peace in is the order of the Yi' — integrating the pre-Qin context, the Confucian scholarly lineage, and the structure of the Zhouyi to elucidate how the junzi, by embodying the Way of Heaven and Earth, takes the Yi as the foundation of settled existence, contemplates the images and savors the statements, and ultimately attains the state of 'auspiciousness with nothing unfavorable.'

Chapter Two: Detailed Exegesis — "Therefore, What the Junzi Dwells in and Finds Peace in Is the Order of the Yi"
I. The Meaning of "Junzi"
In the Zhouyi, "junzi" appears with extraordinary frequency. Nearly every Great Image commentary follows the formula "The junzi thereby..." For example: "Heaven moves with vigor; the junzi thereby ceaselessly strengthens himself" (Qian); "The configuration of Earth is receptive; the junzi thereby supports all things with generous virtue" (Kun).
In the pre-Qin context, junzi shifted from a status concept ("the son of a lord") to a moral concept. The Master said: "The junzi takes rightness as his substance, performs it through ritual propriety, expresses it with modesty, and brings it to completion with trustworthiness" (Lunyu, "Wei Ling Gong"). In the Zhouyi, the junzi is both a moral subject and a cognitive subject — knowing not only what is good but also when to advance and when to retreat.
The Wenyan Zhuan of Qian says: "The great person is one whose virtue is in harmony with Heaven and Earth, whose brilliance is in harmony with the sun and moon, whose order is in harmony with the four seasons, and whose perception of good fortune and misfortune is in harmony with the spirits and gods."
II. The Deep Significance of "Dwelling in Peace"
"Dwelling in peace" (ju er an) means abiding in a certain state or realm and feeling settled, grounded, free from anxiety. The Master's life — from "at fifteen I set my heart on learning" to "at seventy I could follow my heart's desire without transgressing the rule" (Lunyu, "Wei Zheng") — was a continuous process of seeking spiritual rest. According to our passage, the Yi is precisely the foundation of the junzi's spiritual rest.
III. The Multiple Meanings of "The Order of the Yi"
Xu ("order") carries three layers: (1) the sequential arrangement of the sixty-four hexagrams as explained in the Xugua Zhuan; (2) the deeper cosmic order and principle, as in the Liji: "Ritual is the order of Heaven and Earth"; (3) the narration and exposition — "what the Yi sets forth." Synthesizing all three, "the order of the Yi" is the fundamental order of all things as revealed through the systematic arrangement of sixty-four hexagrams and three hundred eighty-four lines. Because this order is natural, internal, and inherent, the junzi who comprehends it becomes one with the Way and naturally "dwells in peace."
IV. The Contrast Between "Dwelling in Peace" and "Dwelling in Unease"
In Lunyu, "Yang Huo," when Zai Wo said he would feel "at ease" ending mourning after one year, the Master replied that a true junzi in mourning "is not at ease in his dwelling." This contrast illuminates that "dwelling in peace" requires deep internalization — the junzi dwells in peace in the Yi's order because he has made it part of his very being.
V. A Historical Case: King Wen Confined at Youli
King Wen, imprisoned by the tyrant Zhou of Yin, did not fall into despair but devoted himself to expanding the eight trigrams into sixty-four hexagrams. He maintained inner stability because "what he dwelled in and found peace in was the order of the Yi" — understanding that extremity of negation leads to affirmation and that things at their extreme must reverse.
VI. The Relationship Between "Order" and "the Way"
The Most High (Laozi) said: "The Way gave birth to the One; the One gave birth to Two; Two gave birth to Three; Three gave birth to the myriad things" (Ch. 42). The Xici Shangzhuan itself says: "The alternation of one yin and one yang — this is called the Way." The order of the Yi is the order of the Way; to "dwell in peace" in the order of the Yi is to "dwell in peace" in the Way. As the Master said: "If one hears the Way in the morning, one may die content in the evening" (Lunyu, "Li Ren").