Soul Reading

Soul Reading is the ability to assess the condition of one's soul. This can be used to determine the condition or presence/absence of a soul in a human body. It can also be used to find out if anyone has placed a claim on someone's soul via a deal.

Characters with this ability

 * Angels - Angels can read a person's soul by literally sticking their hands into their chests. This procedure is extremely painful.
 * Demons - Certain Demons - particularly Crossroad Demons - can assess the condition of one's soul just by looking at them. The Crossroad Demon that Deal sold his soul to in All Hell Breaks Loose - Part 2 taunted him that his soul was "tarnished".
 * Famine - Famine was able to sense the damage to Dean's soul just by touching him.
 * Leviathan - Leviathan are able to sense a certain "spark" in a human's soul that cannot be copied. Dick Roman sensed this spark in Charlie Bradbury, which is why he kept her alive rather than just copy her.