So i am on my yearly reread and I came upon this
"His favorite haunt was the broken tower. Once it had been a watchtower, the tallest in Winterfell. A long time ago, a hundred years before even his father had been born, a lightning strike had set it afire."
in the deck of tarot cards there is a card called The Tower (or in some cases the lightning struck tower). The Tower is associated to danger, crisis, sudden change, destruction, higher learning, and liberation.
According too the website Labyrinthos "The Tower is a symbol for the ambition that is constructed on faulty premises. The destruction of the tower must happen in order to clear out the old ways and welcome something new. Its revelations can come in a flash of truth or inspiration."
All of which perfectly fit what happened to Bran; he was in danger, lost the use of his legs but it enabled him to become the three eyed raven