颐 · Yí — Nourishing Body & Speech
King Wen Sequence #27 (颐 Yí — Nourishing Body & Speech) embodies thunder stirring at the foot of an immovable mountain. Assigned to the Xun Wind Palace (巽宫八卦 · Subtle Penetration) · 游魂卦 (World Line 4 / Response Line 1) and resonant with Late Winter & Vernal Threshold Mountain (立春艮土 · 小寒—雨水), its six-line binary vector (100001) pairs 震 Zhen (Awakening Initiative) at the root with 艮 Gen (Stillness & Boundary) at the crown.
《大象》：山下有雷，頤；君子以慎言語，節飲食。 ｜ 《彖传》：頤貞吉，養正則吉也。觀頤，觀其所養也；自求口實，觀其自養也。天地養萬物，聖人養賢，以及萬民；頤之時大矣哉！
Visual Archetype: warm herbal cauldron in a quiet pavilion. When Mountain (Earth) interacts with Thunder (Wood), the primary strategic mandate centers on mindful nutrition, speech discipline, and mental hygiene. Its Polarity Opposite (Cuo Gua · 错卦) is #28 大过 (Extraordinary Burden), its Overturned Inverse (Zong Gua · 综卦) is #27 颐 (Nourishing Body & Speech), and its Nuclear Core (Hu Gua · 互卦) reveals #2 坤 (The Receptive Earth).
巽宫 · 世爻第4爻 / 应爻第1爻
For decision-makers consulting 颐 (Yí) regarding mindful nutrition, speech discipline, and mental hygiene, the hexagram highlights the interplay between Wood foundation and Earth manifestation under the Wood Palace. Rather than generic haste, align execution with Late Winter & Vernal Threshold Mountain (立春艮土 · 小寒—雨水) rhythms and inspect whether your natal BaZi chart favors Wood, Earth, or Wood as its Favorable Element (喜用神).
《京氏易传》世应法：六四諸侯在世，元士之初九見應(京氏易傳原文:諸侯居世4爻,應爻隔三爻)
Six Lines Progression (六爻爻辞 · Bottom Line 1 to Top Line 6)
颐 (Yí) Line 1 [初九 · 庚子 (水) · 父母 (水) · 应爻 Response]: Germination of thunder stirring at the foot of an immovable mountain near warm herbal cauldron in a quiet pavilion; validate root premises before accelerating mindful nutrition, speech discipline, and mental hygiene. Single-line transformation leads to Zhi Gua #23 剥 (Stripping Away the Old).
《周易本义》：舍音捨朶多果反○靈龜不食之物朶垂也朶頥欲食之貌初九陽剛在下足以不食乃上應六四之隂而動於欲凶之道也故其象占如此
颐 (Yí) Line 2 [六二 · 庚寅 (木) · 兄弟 (木)]: Central lower-trigram seat anchored in warm herbal cauldron in a quiet pavilion; cultivate Wood craftsmanship in harmony with #2 坤. Single-line transformation leads to Zhi Gua #41 损 (Disciplined Simplification).
《周易本义》：求養於初則顛倒而違於常理求養於上則往而得凶丘土之高者上之象也
颐 (Yí) Line 3 [六三 · 庚辰 (土) · 妻财 (土)]: Threshold between 震 Zhen and 艮 Gen during Late Winter & Vernal Threshold Mountain (立春艮土 · 小寒—雨水); pace mindful nutrition, speech discipline, and mental hygiene carefully. Single-line transformation leads to Zhi Gua #22 贲 (Aesthetic Adornment).
《周易本义》：隂柔不中正以處動極拂於頥矣既拂於頥雖正亦凶故其象占如此
颐 (Yí) Line 4 [六四 · 丙戌 (土) · 妻财 (土) · 世爻 World]: Ministerial counsel within the Xun Wind Palace (巽宫八卦 · Subtle Penetration) · 游魂卦; align thunder stirring at the foot of an immovable mountain with institutional mentors. Single-line transformation leads to Zhi Gua #21 噬嗑 (Decisive Enforcement).
《周易本义》：眈都含反○柔居上而得正所應又正而賴其養以施於下故雖顛而吉虎視眈眈下而專也其欲逐逐求而繼也又能如是則无咎矣
颐 (Yí) Line 5 [六五 · 丙子 (水) · 父母 (水)]: Fulcrum of Nourishing Body & Speech (䷚); command mindful nutrition, speech discipline, and mental hygiene through balanced Earth and Wood synthesis. Single-line transformation leads to Zhi Gua #42 益 (Compounding Augmentation).
《周易本义》：六五隂柔不正居尊位而不能養人反賴上九之養故其象占如此
颐 (Yí) Line 6 [上九 · 丙寅 (木) · 兄弟 (木)]: Culmination of thunder stirring at the foot of an immovable mountain, pivoting toward Inverse #27 颐 (Nourishing Body & Speech) and Opposite #28 大过. Single-line transformation leads to Zhi Gua #24 复 (Return of the Light).
《周易本义》：六五賴上九之養以養人是物由上九以養也位高任重故厲而吉陽剛在上故利涉川
BaZi & Plum Blossom Numerology (梅花易数) Connection
Spatial & Elemental Calibration for #27 颐: Place a warm herbal cauldron in a quiet pavilion motif or Wood-element accent in your workspace; cross-reference Hexagram #28 (大过) when balancing Yin/Yang extremes.
Download Hexagram #27 (颐 Yí) 6 Changing Lines Commentary
Get line-by-line classical Yao Ci (爻辞) interpretations from bottom Line 1 (Initial) to top Line 6 (Culmination).