Reading about how is interesting.

Puyi had never brushed his teeth or tied his own shoelaces once in his life and had to do these basic tasks in prison, subjecting him to the ridicule of other prisoners.[240] Much of Puyi's "remodeling" consisted of attending "Marxist-Leninist-Maoist discussion groups" where the prisoners would discuss their lives before being imprisoned.[241] When Puyi protested to Jin that it had been impossible to resist Japan and there was nothing he could have done, Jin confronted him with people who had fought in the resistance and had been tortured, and asked him why ordinary people in Manchukuo resisted while an emperor did nothing.[242] Puyi had to attend lectures where a former Japanese civil servant spoke about the exploitation of Manchukuo while a former officer in the Kenpeitai talked about how he rounded up people for slave labor and ordered mass executions.[243] At one point, Puyi was taken to Harbin and Pingfang to see where the infamous Unit 731, the chemical and biological warfare unit in the Japanese Army, had conducted gruesome experiments on people. Puyi noted in shame and horror: "All the atrocities had been carried out in my name".[243] Puyi by the mid-1950s was overwhelmed with guilt and often told Jin that he felt utterly worthless to the point that he considered suicide.[244] Jin told Puyi to express his guilt in writing. Puyi later recalled he felt "that I was up against an irresistible force that would not rest until it found out everything".[245] Sometimes Puyi was taken out for tours of the countryside of Manchuria. On one, he met a farmer's wife whose family had been evicted to make way for Japanese settlers and had almost starved to death while working as a slave in one of Manchukuo's factories.[246] When Puyi asked for her forgiveness, she told him "It's all over now, let's not talk about it", causing him to break down in tears.[247] At another meeting, a woman described the mass execution of people from her village by the Japanese Army, and then declared that she did not hate the Japanese and those who had served them as she retained her faith in humanity, which greatly moved Puyi.[248] On another occasion, Jin confronted Puyi with his former concubine Li in meetings in his office, where she attacked him for seeing her only as a sex object, and saying she was now pregnant by a man who loved her.[248]