What Has Always Been True Is That The Arya/Lyanna Parallels Work Both Ways. Its Extremely Meaningful

What has always been true is that the Arya/Lyanna parallels work both ways. It’s extremely meaningful to Lyanna to be paralleled with Arya in order to shed light on Lyanna’s inner world, in preparation for the reveal of a long held secret.

How it works is like this: because Arya defends Mycah against Joffrey, we can understand Lyanna’s defense of Howland. Because Arya never once strays from wanting justice for her brutally murdered friend, we can imagine what drove Lyanna to masquerade as the Knight of the Laughing Tree. And because Arya doesn’t think twice about any of this, we can understand Lyanna's convictions.

Because Arya loves exploring and discovering new plants she’s never seen before, because she brings flowers to Ned out of love, we can understand Lyanna being "fond of flowers" as part of a curious and affectionate nature.

Because Arya is never impressed with Joffrey, we can understand Lyanna's immediate assessment of Robert. Because her siblings react to news of Arya's betrothals to unsuitable partners with "Arya won't like that one bit" & "she never will, not Arya" & "[i]f he tries to lay a hand on her, she'll fight him," we can understand the gulf that opened between Lyanna and her family after her betrothal. Because amiable Elmar Frey looked down on Nan the serving girl and Arya resented him for it, we can see Lyanna judging Robert based on how he treats Mya/Mya's mother.

Because Bran thinks Arya "wasn't scared to get dirty, and she could run and fight and throw as good as a boy," because he first assumes Lyanna & Benjen fighting are him & Arya, we can imagine Lyanna & Benjen's relationship.

Because Arya is wolf-blooded and we see that written out, we can understand Lyanna as well.

That isn't to say it isn't meaningful to Arya, having Lyanna scattered through her story. Arya's complex relationship with mentor figures is a post to itself, but in brief: legacies are passed down by people, to people, who then use them as a starting/turning point. Daenerys Targaryen understands the duality of her family's legacy through the fragments of Viserys as her brother, king, and abuser; when he dies, she is the last, and she births dragons. Jon Snow is groomed for command in the Night's Watch just like his uncle and ancestors before him, charged with protecting his homeland in the shadow of an eight thousand year old Stark dynasty. Tyrion is Tywin writ small. The last greenseer waited generations just to haunt Brandon Stark's dreams.

Arya doesn't have that. She has a direwolf, she's a warg, and she has the North in her face. Wolf child, blood child; scattered yet meaningful pieces of a puzzle. By connecting her to Lyanna who came before her, it's a lineage. It's no longer an accident. Arya isn't Lyanna any more than Daenerys is Aegon the Conqueror, or Jon Snow is any of his predecessors, or Tyrion is Tywin, or Bran is Bloodraven, or Edric Dayne is Arthur, or Arianne is Nymeria. These parallels to (pre-series) characters represent a benchmark to be surpassed, whether or not the characters realize it themselves, and in Arya's case is no less.

Intentional parallels like this ask us: what if you were part of something - maybe even the culmination of something - that's been brewing for a very long while now? What if who & what you are is so important, so necessary, that time would fold in on itself for you?

Arya’s time in Harrenhal is actively ignored and disregarded by certain circles in the fandom because that arc doesn’t fit with the agenda they have for their preferred fanon. Why? Because we see Arya being strategic, observant, self-possessed, intelligent, cunning, courteous, hard working, political, and able to read people and then adjust her behavior while dealing with them. She survives and escapes Harrenhal under the Lannisters and then the Boltons using her intelligence, not her minimal ability to use a sword. 

In particular, even among fans of Arya, she is regarded as constantly discourteous with a sassy comment always at the ready. In reality, she struggles but tries to remember her courtesies in AGOT. In ACOK, doesn’t struggle as much, especially by the time she gets to Arya X, where courtesy seems second nature. Her biggest struggle with courtesy comes from remembering to call Roose “my lord” in one scene in her ninth chapter, which seems to be something GRRM causally set up as a clue that by the time ADWD rolled around, he realized who Arya was.  Otherwise, she’s begging pardons, editing out insults from messages, and following through with the “yes, my lords” and “no, my lords” and “at once, my lord”. 

It’s also significant that she served as a page and cupbearer since that’s part of the typical leadership training of highborn children. Aegon V, Edric Dayne, and Rhaenyra I also served those roles, for example. This allowed her a place at council meetings where politics and war strategy were discussed. 

‘’Could you bring back a man without a head? Not six times. Just once.’’

Jon Snow: “All the best swords have names, you know.” Arya Stark: “Sansa can keep her sewing needles. l’ve got a Needle of my own.”

https://www.youtube.com/watch?v=2jwm1yHy-0A

sansa stark + sobriquets ♦ requested by anonymous

Arya takes more after her mother in personality while Sansa takes after her father's.

Sansa and Ned are more gentle and we don't really see them using physical force that much. Hell, they even try to save others from harm even if it was cause them harm in return. Ex) Ned giving Cersei a chance to run away with her kids because he knows that she and her children will possibly die if Robert finds out the truth but instead he is the one who is executed. Sansa telling Maragery the truth about Joffrey which becomes one of the reasons for Joffery's death but Sansa is framed for it.

Catelyn and Arya are not afraid to speak their minds and are pretty stubborn when they have their mind set on something. Catelyn who frees Jaime Lannister because even if having Jaime has a captive gives the North and its allies a advantage, she will do whatever it takes to get her daughters back. Arya refusing to give up her love for Needle despite her parents telling her that it's no such thing for a lady, even refusing to get rid of Needle when she joins the faceless men because it's the one few connections she has to her identity as Arya Stark, the girl with wolf blood.