頤 → 需
第27卦 頤 (Nourishment) 变 第5卦 需 (Waiting)
变爻
此变化涉及 4 个变爻（第 2、3、5、6 爻）。
第二爻
六二 顛頤。拂經于丘。頤征凶。
Six in the second place means: Turning to the summit for nourishment, Deviating from the path To seek nourishment from the hill. Continuing to do this brings misfortune.
第三爻
六三 拂頤。貞凶。十年勿用。无攸利。
Six in the third place means: Turning away from nourishment. Perseverance brings misfortune. Do not act thus for ten years. Nothing serves to further.
第五爻
六五 拂經。居貞吉。不可涉大川。
Six in the fifth place means: Turning away from the path. To remain persevering brings good fortune. One should not cross the great water.
第上爻
上九 由頤。厲吉。利涉大川。
Nine at the top means: The source of nourishment. Awareness of danger brings good fortune. It furthers one to cross the great water.
卦象变化
焦氏易林
履危無患，跳脫獨全。不利出門，傷我左踝。疾病不食，鬼哭其室。
Treading danger without calamity; leaping free, alone preserved. Ill-favored to go out the door; my left ankle is injured. Illness keeps one from eating; ghosts weep within the chamber.
— 焦延寿《焦氏易林》，公元前一世纪
注释
山下有雷化為雲上於天，頤養轉為需之等待。詩分兩截：先則履危無患，跳脫獨全，險中求存。繼而不利出門，傷我左踝——踝為行步之基，傷則寸步難行。疾病不食，鬼哭其室，養生之道全然崩壞。從頤至需，養之失當反成毒害：當守而出，當食而廢，招致身傷與邪祟。需卦之義在於知所等待，而此詩恰示不知待時之禍。
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