In fact, from a scientific point of view, it's just that you are too eager for your mother to get better soon, so you will have such a dream. Some time ago, my old man was seriously ill. I dreamed that he accompanied me to climb Huangshan Mountain. It's all because I miss hope so much.
I don't know if what you need is an answer like dream interpretation. I really don't understand, but your question touched me. I hope your mother will get better.