Every medium is a little different.  Aly sees spirits that haunt us and protect us.  Some of our loved ones come through (ancestors), but this is not his strong suit.  His strong suit is as an over sensitive clairsentient (as well as claircognizant , clairvoyant, clairtagent, and clairaudient), where he helps find things that are hidden (about ourselves or others) in investigation based readings.  Spirits will help him, and at times, channel through him.