Albus Dumbledore was one who had long disapproved of the use of
Dumbledore : A word of caution: dementors are vicious creatures. They will not distinguish between the one they hunt and the one who gets in their way. Therefore I must warn each and every one of you to give them no reason to harm you. It's not in the nature of a dementor to be forgiving.
And the only reason the Dementors choose to follow Voldemort is because he frees them from their duty to Azkaban, allowing them access to the richer pickings on the mainland.
The Dementors made his inner feelings of hurt and abandonment come to life, along with bringing back his worst memories. As mentioned by Remus Lupin, Harry's true fear was fear itself, which the Dementors projected. The creatures forced him to feel the defeated mentality inside of him that he generally pushed down.
Albus Dumbledore
It is not certain what the specific fear is as he is not fearing the death of his sister as she is already deceased and it is suggested that Dumbledore fears that it was him who directly killed his sister in the conflict or that he fears the loss of control that lead to his sister's sudden death.
Voldemort's greatest fear is death and as a result a boggart takes the form of his own corpse. It is unsurprising that this is Voldemort's biggest fear. After all, he did split his soul up encasing it in various horcruxes just so to keep himself from dying.
At the end of the series, Dumbledore admits to Harry that power is his ultimate weakness. He was always conscious of it, and he feared that power had the potential to corrupt him beyond help. That's why he never accepted the Ministry of Magic position even after it was offered several times.
Ekrizdis is a minor yet pivotal antagonist in the Harry Potter universe. He was an immensely evil wizard who lived in the 15th century in medieval Britain, it is believed he was either the creator of the Dementors or that his insane experiments and torture caused the Dementors to first manifest.
A theory posted on Reddit suggests Dementors were drawn to Harry because they could sense the piece of Voldemort's soul living in him. Harry is an “accidental horcrux”, created when the killing curse casted by Voldemort backfired, fragmented his soul, and sent a piece of it to Harry's body.
Professor Lupin explains that Harry has more dark moments in his past than most people, so there is more pain for the dementors to drudge up.
Voldemort Never Figured Out Snape Was A Spy
He openly despised some of his Death Eaters, even the loyal ones like Luscious Malfoy. However, there were a select few that had his trust, and whom he treated with respect. This included Bellatrix Lestrange and Severus Snape.
The final book, Deathly Hallows, explains this. Snape HAD BEEN a Death Eater. He later renounced his connections with that group, but no one besides Dumbledore knew for sure whether he had truly switched sides, or was just faking it. Dumbledore, alone, knew the truth.
Pettigrew attempted to strangle Harry, but momentarily slackened his grip when Harry reminded him of his life debt, and was killed for it by the silver hand made for him by Voldemort. Hermione learned about his death after the battle.
Similarly to Harry, Snape's patronus represents a person. In the memories he gives Harry before his death, Snape shows Dumbledore his patronus, using the form to prove his love of Lily Potter, Harry's mother.
Albus Dumbledore indirectly stated that the Marauders never revealed to anyone, the Order of the Phoenix included, that three of them became Animagi until mid-1994, when Sirius Black told the entire story to him.
Time-turned Harry sends the stag Patronus to save his earlier-self and Sirius. Snape's Patronus is, always and every time, a doe. In Deathly Hallows, when Harry is viewing Snape's memories, we see that Snape summons his doe Patronus in Dumbledore's office to make a point to Dumbledore.
It's not exactly clear what would have happened if a Dementor had succeeded in kissing Harry Potter, because Harry had a fragment of Voldemort's soul in his body in addition to his own. It is possible that the Dementor would have ingested both Harry's soul and also the fragment of Voldemort's soul.
"The first meeting between Lily, her boyfriend James Potter, and the engaged couple, went badly, and the relationship nosedived from there," Rowling revealed. Rowling adds that Vernon hated Harry because he saw father James in him, much in the same way that Snape does.
Every time Harry is confronted with a Dementor, he hears the screams of his mother as she is murdered by Lord Voldemort. A horrific memory to hear... He hears this moment because Dementors feed upon happiness and cause depression and despair in anyone near them. They make people relive their worst memories.
Behind the scenes. It is possible that chocolate is used to ward off the effects following meeting a Dementor as it has chemicals inside it that stimulate the release of endorphins, which are chemicals produced by the body to combat stress and pain; often leading to feeling of increased happiness.
Rowling has revealed that the Dementors were inspired by her own feelings of depression.
In the books, dumbledore tells fudge to shore up his ties with the dementors because Voldemort will go to them first and give them free reign to suck souls. Fudge didn't believe dumbledore and wouldn't you know it, dementors switched to team Voldemort.
After it was revealed that Dumbledore was devastated by the accidental death of his sister during a fight with Grindelwald and his brother, Aberforth, it became clear that Dumbledore's deepest desire, and regret, involved his family.
Draco Malfoy's mother Narcissa was cold, cunning and devoted to the Dark Lord. But she was also a mother, which meant she was willing to risk everything to make sure her son was safe. When Harry survived Voldemort's Killing Curse for the second time, Narcissa pretended he was dead so she could get to Draco.
And so it is nearly certain that from the night James and Lily were killed, Dumbledore planned for Harry to die ' and not only to die, but ideally to sacrifice his life willingly as Lily had done in order to afford the Light side the greatest chance of destroying the self-proclaimed Dark Lord.