After doing some research I find that one or a combination of these three things can hint at spiritual activity. When my second dog, Cleo, died after a month we moved into our new home these three phenomonon started to take place. One month ago my door bell suddenly rang with two short beeps and then went through its entire cycle. However no one was on the other side of the door. After that nothing happened for a couple of weeks. I remember the old saying from the movie It's A Beautiful Life that when a bell rings an angel gets its wings. Recently all three of these things have been happening again. Maybe my dog has come back for a visit? When I'm alone I see flashes of black spots zip past an open door and more so in the kitchen area where she liked to lay. What do people make of this phenomenon and have I drawn the right conclusions?