People can't come back from the dead. If you dream of a dead man, he won't crawl out of the ground to give you trouble. What's more, dreaming that the living are all right, dreaming that the dead are afraid of what? To put it bluntly, human psychology is at work.
To be precise, dreaming of a deceased elder is often a memory of the past. This memory may just be that I saw the children's bright smiles on the roadside during the day, thus thinking that I had smiled as brightly as them when I was a child, and I fell into a short memory. At this time, people may not think about their deceased elders, but things are not over here.
The brain's memory of things is not independent, but interrelated, just like the branches and leaves of trees. When people think of a scene, the connected memories in the brain are often activated. People can't recognize it during the day because the brain doesn't need to process those redundant information. At night, people sleep and give up control of their brains. At this time, the brain begins? Run by yourself? . So those active information points in the brain are played bit by bit in the human brain like movies. At this time, people are sleeping and don't know that their brains are slowly processing irrelevant information, so these information create human dreams.
To put it bluntly, it is often because I recalled some information related to my elders during the day that I dreamed of my deceased elders. Activate? The impression of elders in their own minds.