Dreaming of dead relatives?

This happens a lot if you try to make connection of things in your mind. For eg a flower vase, u can make a connection that your mother loved flowers and she had a vase almost similar to yours even though it wasn't. The mind tries to refresh every image from your past which were going to fade away. I know this won't make sense to you, but if you read any holy book you DO create a connection with your loved ones and God.