The lingering spirit, after death, still possibly be someone looking to close a karmic gap that they incarnated to do in this lifetime.

To those that access the Akashic Records, or Book of Life, they?ll find information about a person across several lifetimes, which Cayce often used to diagnose ailments with those who sought him for readings. So, in the line, a ghost could be what we figured it was, a spirit still looking to finish some business in their life before moving on.

One more possibly comes to mind that a ghost is the collective conscious of the people leaving an imprint in reality of a person?s past existence. With thought creating so much reality everyday, it could have the power to leave a visual, if hazy, representation of the spirit in question.
scholarship contest