People who have had near death experiences often report encountering spirits of people who have already passed on.
Even though some of these people died hundreds, even thousands of miles away. In the spirit world, time or place has no significance.
To a skilled spell caster–someone who is intimate with the spiritual world–it doesn’t matter if you are in the same room or in another state. It is the power and experience of the spell caster that is of utmost importance.