雷出地奮，順以動
Judgment and its commentary
先讀經文，再讀《彖傳》如何解釋卦辭。Read the received text first, then its Tuan commentary.
豫：利建侯行師。
豫卦——利於建立諸侯（封官）、行軍打仗。一陽五陰，剛健之力得到眾人響應，順以而動，故大事可成。
Yu indicates that, (in the state which it implies), feudal princes may be set up, and the hosts put in motion, with advantage.
豫，剛應而志行，順以動，豫。豫順以動，故天地如之，而況建侯行師乎？天地以順動，故日月不過，而四時不忒；聖人以順動，則刑罰清而民服。豫之時義大矣哉！
豫卦：剛爻（九四）有應，志向得行；柔順而動，所以為豫。豫之所以亨通，是因為「順以動」——天地都是這樣運行的，何況封侯行軍？天地以順而動，所以日月不出差錯，四時不出偏差；聖人以順而動，則刑罰清明而民眾順服。豫的時機與意義太大了！
In Yu we see the strong line responded to by all the others, and the will (of him whom it represents) being carried out; and (also) docile obedience employing movement. Such is Yu.
Great Image Commentary
上下卦取象 → 全卦成象 → 人事取法Trigrams → whole image → conduct
雷出地奮，豫
(The trigram representing) the earth and that of thunder issuing from it form Yu.
先王以作樂崇德，殷薦之上帝，以配祖考。
The ancient kings, in accordance with this, composed their music and did honour to virtue, presenting it especially and most grandly to God, when they associated with Him (at the service) their highest ancestor and their father.
雷從地中奮然而出——豫之象。先王由此體會：制作禮樂以推崇德性，盛大地獻祭給上帝，並以祖先配享。
本站導讀，不屬《大象傳》原文；用來預覽本卦六爻由初至上的意象變化。An editorial preview of the six line images, not part of the Great Image Commentary.
鳴豫，凶。
鳴叫式的喜悅——剛開始就大張旗鼓地高興，凶。
The first SIX, divided, shows its subject proclaiming his pleasure and satisfaction. There will be evil.
初六鳴豫，志窮凶也。
初六鳴豫之凶，是因為志向已盡（過早自滿）。
介於石，不終日，貞吉。
如石頭一樣有界限——不等到一天結束就見機而退，守正則吉。
The second SIX, divided, shows one who is firm as a rock. (He sees a thing) without waiting till it has come to pass; with the firmness as of a rock his determination is fixed.
不終日貞吉，以中正也。
不等到一天結束便見機而行，正是中正之德。
盱豫悔，遲有悔。
斜眼看著上位求樂——會悔；行動遲緩也會悔。陰柔不中正，進退兩難。
The third SIX, divided, shows one looking up (for favours), while he indulges the feeling of pleasure and satisfaction. If he would understand! — If he be late in doing so, there will indeed be occasion for repentance.
盱豫有悔，位不當也。
斜眼求樂之悔，是位置不當。
由豫，大有得。勿疑。朋盍簪。
由他（九四）而豫——眾陰歸附，大有所得。不要疑慮，朋友會像簪子聚攏發絲一樣聚集。此爻為全卦主爻。
The fourth NINE, undivided, shows him from whom the harmony and satisfaction come. Great is the success which he obtains. Let him not allow suspicions to enter his mind, and thus friends will gather around him.
由豫大有得，志大行也。
由他而豫大有得，是志向大行。
貞疾，恆不死。
守正而有疾——居高位被九四壓制，雖有疾卻能常久不亡。柔而能持。
The fifth SIX, divided, shows one with a chronic complaint, but who lives on without dying.
六五貞疾，乘剛也。恆不死，中未亡也。
六五貞疾，是因為乘剛（在九四之上）。常不死，是因為中位未失。
冥豫成，有渝無咎。
深陷於樂之中而成——若能改變（渝），則無咎。樂到頂端，再不收則危。
The topmost SIX, divided, shows its subject with darkened mind devoted to the pleasure and satisfaction (of the time); but if he change his course even when it may be considered as completed, there will be no error.
冥豫在上，何可長也。
深陷於樂而居上位，怎能長久？
Two senses in one character: (1) joy, ease, contentment; (2) preparation in advance. The hexagram holds both — joy that has been prepared for.
To install feudal princes — delegating rule; the classic image of a great founding undertaking.
To cry out, to trumpet. Line 1's vice: joy proclaimed loudly the moment it arrives.
Boundary, firmness. Line 2's virtue: a limit as hard as stone in the middle of pleasure.
To look up with raised, sidelong eyes — courting favor from above.
To gather, to come together.
Hairpin — the image of gathering, as a pin draws hair together.
Dark, benighted; sunk deep. Line 6's state: submerged in pleasure past awareness.
To change, to alter course. The one exit from darkened joy.
