An interpretation of the old man's dying dream.
This is your mother's concern for her performance. Life will come to an end, and dreams are hard to say. The west thinks that dreams are omens, while the east thinks that what happened in dreams will not reappear in reality, which means that your grandmother will not die in the near future, but you should relax. One day, when my grandmother is gone, I will accept it more easily, and I love her very much, but after all, these are inevitable after I get old. It's probably impossible to crack them, but it's too rough for your mother to recall the details of her dreams.