What a fascinating thread.
I'm essentially a materialist (in its philosophical sense rather than the economic sense- it means I only believe in the physical)..............
........Now, later, along comes someone else. They also rest beneth the tree and somehow psychically pick up on the previous young man's thoughts and they too believe they can see a ghostly young lady bathing in the pool.
This theory has been extended to visions of ghostly phenomenon and many other kinds of visions - that is, we somehow 'tune in' to the radio waves left behind by someone else's thought patterns. Not necessarily erotic, but intense nonetheless.
An interesting theory.