《太平广记·卷二百七十九·梦四》
从此以后心惊神耗，疲惫不堪，以至于连一张弓也拉不开。
自是心悸力耗，至不能引一钧弓。
From then on, he was panic-stricken, exhausted, and unable to pull even a single bow.
<s>[INST] Kindly elucidate the central themes in this passage in English: 自是心悸力耗，至不能引一钧弓。 [/INST] From then on, he was panic-stricken, exhausted, and unable to pull even a single bow.</s>
Kindly elucidate the central themes in this passage in English: 自是心悸力耗，至不能引一钧弓。
user
From then on, he was panic-stricken, exhausted, and unable to pull even a single bow.
assistant