I don't know if you have this feeling that you are not necessarily somewhere, doing something, and suddenly feel that this place and this thing are deja vu. But obviously this scene is the first experience. I think this is a trace of a previous life.
Many things in dreams can't be explained by science. Most dreams are forgotten when we wake up, but some dreams will be clearly remembered: the appearance in the dream, the clothes, the tone of voice, the surrounding scenery, and even the colors of flowers and grass. . .
This is the reappearance of memory, I firmly believe!