《太平广记·卷一百一十五·报应十》
席豫看见肝在盘子中摇动不停，皱眉好久，让拿下去，于是拿来一匹绢，为羊铸佛。半天左右，席豫忽然死去。
去河西两驿，下食，求羊肝不得，挞主驿吏。
Xi Yu saw that the liver was still shaking on the plate. With a frown that lasted for a long time, he ordered it to be taken away. Thereupon, he brought out a piece of silk and cast a Buddha out of the liver. After about half a day, Xi Yu suddenly died.
<s>[INST] Kindly elucidate the central themes in this passage in English: 去河西两驿，下食，求羊肝不得，挞主驿吏。 [/INST] Xi Yu saw that the liver was still shaking on the plate. With a frown that lasted for a long time, he ordered it to be taken away. Thereupon, he brought out a piece of silk and cast a Buddha out of the liver. After about half a day, Xi Yu suddenly died.</s>
Kindly elucidate the central themes in this passage in English: 去河西两驿，下食，求羊肝不得，挞主驿吏。
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Xi Yu saw that the liver was still shaking on the plate. With a frown that lasted for a long time, he ordered it to be taken away. Thereupon, he brought out a piece of silk and cast a Buddha out of the liver. After about half a day, Xi Yu suddenly died.
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