Metaphysics is a branch of philosophy that means beyond physicality.
(Meta) is the greek word for beyond and (physics) the physical, so beyond the physical and is the area where empirical sciences overlap or rather clash into theology and spirituality.
Parapsychology is a branch of psychology that studies psychic phenomena and altered states of awareness - It also studies telepathy, clairvoyance and mediumship - So the gaining of knowledge and information beyond our normal five senses perceptual range.