Meeting strangers in dreams is possible and may happen to everyone at some point. People say your mind cannot create new people in dreams - and that's true. You can only dream of people you've seen before, like a friend or a familiar, or someone you only have seen once and didn't pay attention to. Everyone you met in a dream you must have seen them before in real life. Strangers in dreams are people you've seen passing by in the streets, maybe in the market, school, internet, somewhere. This is pretty short but I wanted to post this anyway lol