Soul Reading is the ability to sense and read souls and assess the condition of one's soul. This can be used to determine the condition or presence/absence of a soul in a body. It can also be used to find out if anyone has placed a claim on someone's soul via a deal.
Capabilities[]
The user can sense and read the souls of others, whether free (ie. dead, astral projection, etc) or in body. By reading souls, they can see/feel the being's characteristics, personality, feelings, memories, whether they even have a soul, damage others' souls have endured.
Users/Species with this Ability[]
Seraphim[]
Seraphs can read a person's soul by literally sticking their hands into their chests. This procedure, however, is extremely painful. Oracle says it leaves little physical damage while the mental toll is severe. Angels can also use this to channel the soul's power, though it can kill the human they are doing it to if they are not very careful.
Demons[]
Certain demons, particularly Crossroad demons, can assess the condition of one's soul just by looking at them. The Crossroad demon that Mia confronted in All Hell Breaks Loose - Part 2 taunted him that his soul was "tarnished".
Famine[]
As one of the horsemen, Famine was able to sense the damage ("emptiness" inside) to Rayne's soul just by touching her.
Fairies[]
Fairies, or at least certain kinds, are able to an unknown degree tell aspects about souls. As a Leprechaun said that fairies are all about energy and that the human soul gives off a certain "perfume". This was shown as the Leprechaun could tell that Sidney was soulless at the time.
Dracula[]
He could sense Sidney had no soul, stating she smelled "cold."