Don't watch Ghost Hunters, but truly believe in their existence. Those of us who can't see ghosts would probably be too traumatized if we encountered one. GREATGUY, that may be why you do not see your late wife. Or perhaps she feels you may not move on and find someone else if she appears to you. Or, Heaven might not allow her. There could be many reasons why. Is there a difference between ghosts and spirits? I can sense spirits and can even see waves of energy at around 11 pm. I figure it's either my guardian angel and spirits guides, which I truly believe we have, or spirits looking for a place to crash at night. lol !