So, when it comes to the pair having the same Patronus, we want you to know that it's all because of love. If you recall, "The Prince's Tale" chapter of Harry Potter and the Deathly Hallows virtually confirms that Snape's unrequited love for Lily influenced the shape of his Patronus.
It was only through his encounter with Lily, his love for her grew that he began to cherish their happy moments and was able to eventually produce his patronus. The doe patronus is his original patronus.
A doe. And in his final battle with Lord Voldemort, Harry explained the significance of this to his adversary, and to us: 'Snape's Patronus was a doe,' said Harry, 'the same as my mother's, because he loved her for nearly all of his life, from the time when they were children'.
Snape's doe Patronus reveals his one true motivation throughout Harry's life: to protect the child of the woman he loved.
Now, as firmly established, Snape was not the greatest fan of Harry, but that didn't mean that he ever stopped loving Lily. Dumbledore was surprised that Snape seemed to care for the boy. With a swish of his wand, Snape conjured up a Patronus – Lily's Patronus, a doe. 'Always,' he said.
Lily brought light and warmth into Snape's life from the moment they met. He was an isolated, lonely child whose magic would have only made him more of an outsider in his hometown of Cokeworth.
The albatross is the rarest Patronus on our list; the one belonging to the lowest number of Wizarding World fans. With the longest wingspan of any bird – up to 11 feet – the albatross surfs the ocean winds for hours, hardly even needing to flap.
They were close friends, she saw in him someone special that she could care about. But she couldn't be with him. So, it seems like it was very unlikely that Lily ever found out Snape loved her.
"Lily! After all this time?" he asked and "Always," replied Snape. Snape having the same Patronus, the doe, as Lily symbolized his everlasting love and unwavering devotion towards her. He hadn't stopped loving her after their last altercation, marriage to James Potter, or death.
Dumbledore reveals how thoroughly he loves Harry. Harry is brave, and Dumbledore is proud as any father would be. More than that, Dumbledore succumbs to a parent's weakness; he cares more about Harry's happiness and wellbeing than the wizarding world he is trying to protect.
In a misguided attempt to win back Lily's affections, Snape joined the Death Eaters along with a group of his fellow Slytherins. Severus was made a member of the Slug Club presumably because of his talent in Potion-making.
The stag is first seen in Harry Potter and the Prisoner of Azkaban when it saves Harry and Sirius Black (Gary Oldman) from the dementors at the lake. Originally, Harry believes it to be from his father, who somehow survived, but it turns out to be from Harry, who traveled back in time with the time turner.
It's a word that gained so much more clarity and tragedy after Harry Potter and the Deathly Hallows revealed that the nefarious Professor Severus Snape was actually serving a nobler cause: protecting Harry from Voldemort out of love for Snape's childhood friend Lily Evans.
Snape was born to Eileen Prince, a witch, and Tobias Snape, a Muggle, making him a half-blood (hence the name, "Half-Blood Prince"). This is rare for a Death Eater, as remarked in the last book, though Voldemort himself also had a Muggle father.
In order to conjure the avada kedavra curse, you have to want to kill your victim. We all know that Voldemort could easily kill a child without an ounce of remorse... but not Snape. Snape didn't want to kill Dumbledore, and this was why the spell was blue instead of the usual green.
All this implies that James Potter and his friends did have the tendency to bully people for fun or “just because they can”. In fact, James outright tells Lily that he's bullying Severus Snape because of the “fact that he exists, if you know what I mean”.
To be fair, James would (and did) willingly die for Lily too. But Snape loved Lily so much that he was willing to die just to avenge her. He would die just for the memory of her.
voldemort was trying to spare her, but he didn't care that much if he succeeded. this is basically what happens in rowling's canon.
The acclaimed author explained that Harry paid tribute to Snape because of “forgiveness and gratitude.” Though Snape bullied Harry, he also saved him. “Harry hoped in his heart that he too would be forgiven.
As Rowling sees it, Snape eventually sacrificed himself in order to save Harry at the Battle of Hogwarts, so Harry felt the need to honor him. There's a whole essay in why Harry gave his son Snape's name, but the decision goes to the heart of who Harry was, post-war.
Voldemort intentionally made six Horcruxes, but when he used Avada Kedavra on Harry, he unintentionally created a seventh Horcrux. Instead of dying, Lily's love for Harry created a counter 'curse' known as Sacrificial Protection and saved Harry.