My take is that everything we know from scripture is that when it is important for something or someone, resurrected beings are allowed to talk with mortals, usually in family lines. Maybe we could pray, but I wouldn't since it seems rather presumptuous to think I'm entitled to summon people to earth. I don't know that any of us have any idea who meets us when we die (although I would think anyone we are sealed to in marriage who has kept their covenants would have that privilege if it is part of death process).