Yes a spirit who has crossed over can come back again and be earthbound. I had an experience with my father who has been dead for over a decade and he was forced to come back from the dead because there was a problem in the family. He came to me in dreams and explained why he had to come back and what the problem was all about and when he was done he told me he was leaving it in my hands and he disappered to the sprit world again.
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