I have a theory about many people saying they were Cleopatra. I also believe the previous theory about her being an archetypal figure in the psychic residue of modern culture.
Our soul/aura/Ki field is felt as a vibrational field. This vibrational field is emitted from the action of hormones and neurotransmitters. Depending on what a person is thinking/feeling/doing and the intensity of what said person is thinking/feeling/doing, you will occasionally have pieces of your soul (not spirit, spirit is different) break off. There may be hundreds of soul pieces of an individual (animal or person since animals have the same hormones we do) existing in our world.
I also believe that soul pieces are attached to the flesh of a person. Household dust is about 90% human skin which is why people will report seeing ghosts during house remodeling.
Anyways, I hope this thread comes back to life.