井 → 臨
第48卦 井 (The Well) 变 第19卦 臨 (Approach)
变爻
此变化涉及 3 个变爻（第 1、3、5 爻）。
第初爻
初六 井泥不食。舊井无禽。
Six at the beginning means: One does not drink the mud of the well. No animals come to an old well.
第三爻
九三 井渫不食。為我心惻。可用汲。王明。並受其福。
Nine in the third place means: The well is cleaned, but no one drinks from it. This is my heart's sorrow, For one might draw from it. If the king were clear-minded, Good fortune might be enjoyed in common.
第五爻
九五 井冽。寒泉食。
Nine in the fifth place means: In the well there is a clear, cold spring From which one can drink.
卦象变化
焦氏易林
順風吹火，牽騎驥尾。易為功力，因權受福。
Blowing fire with a following wind; grasping the tail of a swift steed. Easy the effort and easy the gain; by seizing the advantage, one receives good fortune.
— 焦延寿《焦氏易林》，公元前一世纪
注释
木上有水，井養功在持恆，然善用巧力者事半功倍。順風吹火——風助火勢，不費吹灰之力；牽騎驥尾——驥馬奔馳，握尾即隨其勢而行。二者皆借勢省力之譬喻：不與天時相逆，順脈絡而動。易為功力，因權受福。從井至需（雲上於天），需為待時而動之象。大夫遍訪乃至得其所，正合需卦之旨：耐心等候，佳地自現，安居之福水到渠成。
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