《北史·列传·卷七十四》
送孟业出关的，有几百人，到黎阳郡西边，才得以辞别，拉手痛哭，悲惨之景感动了行路的人。
送业度关者，有数百人，至黎阳郡西，方得辞决。攀援号哭，悲动行路。
Hundreds of people escorted Meng Ye out of the pass. It was not until they reached the west of Liyang County that they were able to bid farewell. They held hands and cried, a scene that moved passers-by.
<s>[INST] Kindly elucidate the central themes in this passage in English: 送业度关者，有数百人，至黎阳郡西，方得辞决。攀援号哭，悲动行路。 [/INST] Hundreds of people escorted Meng Ye out of the pass. It was not until they reached the west of Liyang County that they were able to bid farewell. They held hands and cried, a scene that moved passers-by.</s>
Kindly elucidate the central themes in this passage in English: 送业度关者，有数百人，至黎阳郡西，方得辞决。攀援号哭，悲动行路。
user
Hundreds of people escorted Meng Ye out of the pass. It was not until they reached the west of Liyang County that they were able to bid farewell. They held hands and cried, a scene that moved passers-by.
assistant