Bran III, AGoT — Visions and Their Corresponding Passages
He looked east, and saw a galley racing across the waters of the Bite. He saw his mother sitting alone in a cabin, looking at a bloodstained knife on a table in front of her,
Her hand groped beneath her cloak, her fingers stiff and fumbling. The dagger was still at her side. She found she had to touch it now and then, to reassure herself. (Catelyn IV, AGoT)
as the rowers pulled at their oars and Ser Rodrik leaned across a rail, shaking and heaving.
"The captain was just telling me that our voyage is almost at an end," she said.
Ser Rodrik managed a wry smile. "So soon?" He looked odd without his great white side whiskers; smaller somehow, less fierce, and ten years older. Yet back on the Bite it had seemed prudent to submit to a crewman's razor, after his whiskers had become hopelessly befouled for the third time while he leaned over the rail and retched into the swirling winds. (Catelyn IV, AGoT)
A storm was gathering ahead of them, a vast dark roaring lashed by lightning, but somehow they could not see it.
The crossroads gave her pause. If they turned west from here, it was an easy ride down to Riverrun. Her father had always given her wise counsel when she needed it most, and she yearned to talk to him, to warn him of the gathering storm. If Winterfell needed to brace for war, how much more so Riverrun, so much closer to King's Landing, with the power of Casterly Rock looming to the west like a shadow. If only her father had been stronger, she might have chanced it, but Hoster Tully had been bedridden these past two years, and Catelyn was loath to tax him now. (Catelyn V, AGoT)
He looked south, and saw the great blue-green rush of the Trident. He saw his father pleading with the king, his face etched with grief.
"Stop them," Sansa pleaded, "don't let them do it, please, please, it wasn't Lady, it was Nymeria, Arya did it, you can't, it wasn't Lady, don't let them hurt Lady, I'll make her be good, I promise, I promise…" She started to cry.
All Ned could do was take her in his arms and hold her while she wept. He looked across the room at Robert. His old friend, closer than any brother. "Please, Robert. For the love you bear me. For the love you bore my sister. Please."
The king looked at them for a long moment, then turned his eyes on his wife. "Damn you, Cersei," he said with loathing.
He saw Sansa crying herself to sleep at night, and he saw Arya watching in silence and holding her secrets hard in her heart.
And Arya was lost after she heard what had happened to her butcher's boy. Sansa cried herself to sleep, Arya brooded silently all day long, and Eddard Stark dreamed of a frozen hell reserved for the Starks of Winterfell. (Eddard IV, AGoT)
There were shadows all around them. One shadow was dark as ash, with the terrible face of a hound.
But if her nights were full of wolves, her days belonged to the dog. Sandor Clegane made her get up every morning, whether she wanted to or not. (Arya XII, ASoS)
Another was armored like the sun, golden and beautiful.
"I have made kings and unmade them. Sansa Stark is my last chance for honor." Jaime smiled thinly. "Besides, kingslayers should band together. Are you ever going to go?" (Jaime IX, ASoS)
Over them both loomed a giant in armor made of stone, but when he opened his visor, there was nothing inside but darkness and thick black blood.
Maester Caleotte bowed, Ser Gregor's head still clutched in his soft pink hands.
"I'll take that." Obara Sand plucked the skull from him and held it at arm's length. "What did the Mountain look like? How do we know that this is him? They could have dipped the head in tar. Why strip it to the bone?" (The Watcher, ADwD)
His armor was plate steel, enameled white and bright as a maiden's hopes, and worn over gilded mail. A greathelm hid his face. From its crest streamed seven silken plumes in the rainbow colors of the Faith. A pair of golden seven-pointed stars clasped his billowing cloak at the shoulders.
A white cloak. (Cersei II, ADwD)
He lifted his eyes and saw clear across the narrow sea, to the Free Cities and the green Dothraki sea and beyond, to Vaes Dothrak under its mountain, to the fabled lands of the Jade Sea, to Asshai by the Shadow, where dragons stirred beneath the sunrise.
As Daenerys Targaryen rose to her feet, her black hissed, pale smoke venting from its mouth and nostrils. The other two pulled away from her breasts and added their voices to the call, translucent wings unfolding and stirring the air, and for the first time in hundreds of years, the night came alive with the music of dragons. (Daenerys X, AGoT)
Dany's wrist still tingled where Quaithe had touched her. "Where would you have me go?" she asked.
"To go north, you must journey south. To reach the west, you must go east. To go forward you must go back, and to touch the light you must pass beneath the shadow."
Asshai, Dany thought. She would have me go to Asshai. (Daenerys III, ACoK)
However, George has said:
“I don’t plan to set any scenes in Asshai – at least not in the present book, but you may find out a little bit about it in future books. We do have one character who’s been there, of course, and that’s Melisandre. So, in the chapters from her thought, you may occasionally have her think back to her time in Asshai.”
[Source — around the 27:22 mark]
Finally he looked north. He saw the Wall shining like blue crystal, and his bastard brother Jon sleeping alone in a cold bed, his skin growing pale and hard as the memory of all warmth fled from him.
Chunks of coal burned in iron braziers at either end of the long room, but Jon found himself shivering. The chill was always with him here. In a few years he would forget what it felt like to be warm. (Jon III, AGoT)
True death came suddenly; he felt a shock of cold, as if he had been plunged into the icy waters of a frozen lake. (Prologue, ADwD)
Jon fell to his knees. He found the dagger's hilt and wrenched it free. In the cold night air the wound was smoking. "Ghost," he whispered. Pain washed over him. Stick them with the pointy end. When the third dagger took him between the shoulder blades, he gave a grunt and fell face-first into the snow. He never felt the fourth knife. Only the cold… (Jon XIII, ADwD)
And he looked past the Wall, past endless forests cloaked in snow, past the frozen shore and the great blue-white rivers of ice and the dead plains where nothing grew or lived. North and north and north he looked, to the curtain of light at the end of the world, and then beyond that curtain. He looked deep into the heart of winter, and then he cried out, afraid, and the heat of his tears burned on his cheeks.
(Source: The World of Ice and Fire Official App)
The Land of Always Winter is uncharted territory, with perpetually frozen land, said to be home of the Others.
"You mean the Others," Bran said querulously.
"The Others," Old Nan agreed. "Thousands and thousands of years ago, a winter fell that was cold and hard and endless beyond all memory of man. There came a night that lasted a generation, and kings shivered and died in their castles even as the swineherds in their hovels."
"In that darkness, the Others came for the first time," she said as her needles went click click click. "They were cold things, dead things, that hated iron and fire and the touch of the sun, and every creature with hot blood in its veins." (Bran IV, AGoT)
The "curtain of light" ends where the Others live. They dislike the sun, and would magically block it out.