Yall ever think maybe the Starks represent the faith of the seven aka the seven gods ?
Ned, Catelyn, Robb, Sansa, Arya, Bran, Rickon. Think about it:
The Father/Ned Stark: Represents justice and honour. Ned embodied both, so much that it got him killed.
The Mother/Catelyn: Represents motherhood, fertility and mercy. She gave birth to 5 kids and loved them all with everything, interesting how Catelyn's flaws came in the form of mercy (begging for her daughters). When she died she begged for mercy.
The Warrior/Robb: Represents war, victory and courage. Robb never lost a battle and had the courage to take risks, he was quick to go to battle when his father was taken hostage and set for execution. What also got him killed was his focus on battle and winning a war (he died by the blade).
The Maiden/Sansa: Represents innocence, honesty and chastity. Both of these Sansa has to a T. Funny how in the book and show she is having her chastity and innocence taken away from Littlefinger (learning the game) and in the show, by Ramsay. If she gets pregnant her chastity is taken, I think that's also why the show had Ramsay take her the way he did.
The Stranger/Arya: Represents death and the unknown. Arya's whole arc is revenge and it can only be satisfied by death, she follows the Many-Faced god. She lost her vision now forced to confront the unknown. She's training to be an assassin.
The Crone/Bran: Represents wisdom and guidance. Bran is becoming a greenseer, his whole story is the pursuit for wisdom and guidance.
The Smith/Rickon: Represents strength. Rickon was the wildest and most aggressive of the Stark children.
Even their direwolves are representative of their personalities. GRRM had this in our faces the whole time. Their quote "winter is coming" is the most important quote of the entire series. The white walkers are also coming too....
The Seven gods below:
It's possible then as to how the Stark kids are able to warg into their direwolves in the books. They are the reincarnation of the seven gods.
http://gameofthrones.wikia.com/wiki/Faith_of_the_Seven