The Essence of the 'Great Treatise A': A Philosophical Inquiry into the Gentleman's Establishment of Life and the Order of the *Yi*
This article deeply interprets the core proposition from the 'Great Treatise A'—'That which the gentleman dwells in and finds peace is the order of the *Yi*.' It examines how the gentleman, by internalizing the Way of Heaven and Earth and utilizing the *Book of Changes* as the foundation for establishing his life, achieves a state of 'auspiciousness without detriment' through observing the images and contemplating the textual explanations, situated within the Pre-Qin context and the Confucian tradition.

IV. The Dialectical Unity of the Four Dimensions
Images, Words, Changes, and Divinations are not separate but dialectically unified.
"Therefore, that wherein the Gentleman resides and finds ease is the Arrangement of the Yi; that wherein he delights and contemplates is the Divinations of the Lines."
Here, "Arrangement" (the level of Image/Order) is mentioned first, followed by "Words" (the level of Words).
"Thus, when the Gentleman resides, he observes their Images and contemplates their Words; when he acts, he observes their Changes and contemplates their Divinations."
Here, Images and Words are mentioned together, as are Changes and Divinations.
"Whereby Heaven assists him, and everything auspicious brings no harm."
This is the ultimate result of the unification of the four elements.
From a dialectical perspective:
- Image is the basis for the Word—without the Image, the Word lacks grounding.
- The Word is the elucidation of the Image—without the Word, the Image remains at the level of vague intuition.
- Change is the unfolding of the Image and Word in the time dimension—Image and Word are static; Change is dynamic.
- Divination is the comprehensive application of Image, Word, and Change—Divination requires considering all three simultaneously.
When the four are unified, one achieves a complete grasp of the Yi, and consequently, the state of "Heaven assists him, bringing no harm to anything auspicious."