It was like a white light that dwelled in his body, permeating every aspect of it, but not tangible in the sense that one could see or sense it. It was the connection between his soul and flesh, allowing the two to transfer information, feelings and resonate with each other.
Without a soul, a person would just be a meat bag with no sentience. Without a body, a person would just be a weak wandering soul with no means to affect the corporeal world. Without a spirit, a person would become like an undead, aware and able to function, but never whole.
The best case scenario was having a split personality disorder as the mind and body did not connect and gave contradictory orders, and the worst case was being vegetative yet somewhat aware.
