The successor is replaced, the old man can walk out of the house, it does not mean that he is reborn, and he will be ashes as the dead when he walks out of this reincarnation.
In the third paragraph, I think that the wife died after the husband took the medicine. He didn't struggle twice. It was the husband who struggled again and again. He felt that it was cruel and remorseful, so when the elevator opened, he was holding the photo album of the two of them. The same is true for the relationship between husband and wife who "have no filial son in front of the bed for a long time". No matter how beautiful the relationship is, it will be wiped out, but the moment of life and death is still extremely painful.
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