Use of the Sight, sometimes also referred to as "third eye", allows a wizard to gaze upon the world and see its supernatural side, allowing the perception of things hidden to the normal eye. What has been seen through the use of the Sight will remain a lasting memory forever, and will neither fade nor be forgotten. Because of this, wizards don't use it often, for it could easily drive them insane.(reference needed)
The Sight usually shows concepts physically, e.g. if a loved one had recently died, a person could have wounds similar to those of a sword, as thought by Harry Dresden. When Molly Carpenter forced her friends off drugs, Harry saw the damage done by her as if a laser scalpel had drilled 2 holes into the victim's head. 
The Sight can break through illusions and is generally the method used by wizards to pierce veils.(reference needed) The Sight can also be induced in mundane humans. One known example is the drug ThreeEye, which gave the user the Sight, but also severely strained their minds, as it was unable to be turned off until the drug wore off.
The Sight is similar to, but not the same as, a soulgaze.(reference needed) Seen from the Spirit side, it looked like: a blinding burst of light emitting from between and just above the eyebrows and included a tangible sensation.
In the seriesEdit
- Main article: Storm Front
- Main article: Grave Peril
In Grave Peril, while Harry Dresden, Susan Rodriguez and Michael Carpenter were trying to leave Bianca's Ball, Harry senses someone in their way on the stairs leading out. He opens his Sight and Sees Mavra, a Black Court vampire, through her veil. She says that few can see her when she doesn't wish to be seen.
- Main article: Summer Knight (novel)
In Summer Knight, Harry used his sight to the Stone Table and the landscape surrounding it. It seethed with conflicting energy. On one side it was filled with flowers, greens and golds and flashed of color and points of brilliant light. The other side were were crystal ices of cold blue, purple and greens advancing in some places and melting in others.
- Main article: Blood Rites
In Blood Rites, when going through the shelter above Mavra's lair, Harry opens his Sight so that he can See who was a Renfield, who were just thralls. While his Sight was still open, he Saw Karrin Murphy like an angel, "blazing fury", eyes had "azure flame" a sword of fire in each hand, her clothes were soiled and she was bleeding from several wounds. Then he Saw Jared Kincaid who is a half mortal, half demon—he appears as a giant, horned, winged demonic man. 
- Main article: Proven Guilty
In Proven Guilty, Harry uses his Sight to look at the crime scene at SplatterCon!!!. He Sees that Black magic was definitely involved. It's what the Gatekeeper Rashid had put Harry on the lookout for. Later, Harry takes a look with his Sight at the Phobophage victims at Mercy Hospital. First he Sees Karrin Murphy in a white angelic tunic with battle stains. Harry Sees Rosanna Marcella, Molly's friend, with psychic black holes bored into her head (It was later revealed that it was Molly Carpenter who did that when she forced her friends off drugs). In ICU, Miss Becton's psyche was savagely mauled—she wasn't coming back. Harry Saw Clark Pell would survive because the monster couldn't get to his psyche. When Harry Looked at Nelson Lenhardt with is Sight, at St. Mary's he found the same two holes in his temples and deduced that Molly forced Rosie and Nelson off drugs to protect the unborn baby.
- Main article: Turn Coat
In Turn Coat, when Harry was driving home, his senses told him he was being followed. He opened his Sight and saw the Skinwalker, Shagnasty, where the pure evil of the monster nearly disabled him. Because he Saw it with his Sight, he would see it again and again with every thought or memory of it. He couldn't drive, so he walked to Billy's doing calculus in his head to keep his thoughts off of the it. To recover himself, he went into a dark quiet room and little by little he desensitized himself from it till he could think of it and not fall to his knees.
- Main article: Ghost Story
In Ghost Story, Harry's ghost used his Sight at the Office in the Between. When he Saw the guard at the elevator, his gun morphed into a sword that glowed. The guard gently stopped Harry and his Sight vanished. The guard apologized and said Harry might have been harmed. His name tag read: "Amitiel". Later, Molly Carpenter used her Sight to verify if Harry's Ghost was really there. Harry's ghost used his Sight to See through Molly's illusions when she fought Servitors of the Fomor. Harry had his Sight wide open in the Big Hoods hideout while battling Corpsetaker. But when they locked eyes, no Soulgaze occurred.
"A wizards Sight, his ability to perceive the world around him in a vastly broadened spectrum of interacting forces, is a dangerous gift. Whether it's called spirit vision, or inner sight, or the Third Eye, it lets you perceive things you'd otherwise never be able to interact with. It shows you the world the way it really is, matter all intertwined with a universe of energy, of magic. The sight can show you beauty that would make angels weep humble tears, and terrors that the Black-Goat-with-a-Thousand-Young wouldn't dare use for its kids' bedtime stories. Whatever you see, the good, the bad, the insanity-inducing — it sticks with you forever. You can't ever forget it, and time doesn't blur the memories. It's yours. Permanently."
- ↑ 1.0 1.1 1.2 Turn Coat, ch. 4
- ↑ 2.0 2.1 Proven Guilty, ch. 16
- ↑ 3.0 3.1 Storm Front, ch. 11
- ↑ Ghost Story, ch. 11
- ↑ Grave Peril, ch. 28
- ↑ Summer Knight, ch. 23
- ↑ Blood Rites, ch. 31
- ↑ Proven Guilty, ch. 11
- ↑ Proven Guilty, ch. 17
- ↑ Proven Guilty, ch. 32
- ↑ Ghost Story, ch. 2
- ↑ Ghost Story, ch. 11
- ↑ Ghost Story, ch. 22
- ↑ Ghost Story, ch. 45