Sometimes it's a question of which current of energy is hitting you more strongly.

If you're being put in a certain current of energy by the universe, you're going to start thinking people who passed away are going to come back and talk to you in particular ways, and therefore it doesn't seem like they're really dead, it just seems like they're in a different space, and they can still get messages through to you. Sigh. But perhaps it's not appropriate for everyone to experience such things.