《魏书·帝纪·卷七》
十四日，孝文帝路过比干的坟墓，为比干忠心耿耿却惨遭剖心之祸而感到无比的悲伤，亲自作了一篇悼文，命人立了一块石碑，刻在上面。
甲申，经比干之墓，伤其忠而获戾，亲为吊文，树碑而刊之。
On the fourteenth day, Emperor Xiaowen passed by Bi Gan's tomb. Filled with immense sadness at the dreadful fate that befell Bi Gan who despite being loyal and devoted suffered the gruesome punishment of having his heart dug out, the emperor personally wrote an epitaph and ordered people to carve it on a stone tablet and erect it there.
<s>[INST] Kindly elucidate the central themes in this passage in English: 甲申，经比干之墓，伤其忠而获戾，亲为吊文，树碑而刊之。 [/INST] On the fourteenth day, Emperor Xiaowen passed by Bi Gan's tomb. Filled with immense sadness at the dreadful fate that befell Bi Gan who despite being loyal and devoted suffered the gruesome punishment of having his heart dug out, the emperor personally wrote an epitaph and ordered people to carve it on a stone tablet and erect it there.</s>
Kindly elucidate the central themes in this passage in English: 甲申，经比干之墓，伤其忠而获戾，亲为吊文，树碑而刊之。
user
On the fourteenth day, Emperor Xiaowen passed by Bi Gan's tomb. Filled with immense sadness at the dreadful fate that befell Bi Gan who despite being loyal and devoted suffered the gruesome punishment of having his heart dug out, the emperor personally wrote an epitaph and ordered people to carve it on a stone tablet and erect it there.
assistant