I have seen earthbound spirits many, many times. My most insistent appearances are from a being whom I have named John.
It is not at all unusal to find John standing alongside of my bed when I wake. I believe that he is the former owner of the house that I now occupy, and have tried to encourage him to take the plunge and cross over. I'm not certain, however, that he will take my advice any time in the near future.
John sometimes whispers my name in the middle of the night, or causes my bed to "vibrate."
Although it's certainly not pleasant to be woken from a pleasant dream, I am determined to figure out what he is trying to tell me - which I am certain he is attempting to do.
I actually enjoy his visits, and there will be a bittersweet joy when he finally does decide to go. In the meanwhile, I can only watch, listen, and advise my ethereal companion to head for the light.