Each Game of Thrones season's ending scene is symbolic of either fire or ice, alternating between seasons.
- In Season 1, Daenerys' dragons hatch. Dragons are an obvious analogy to fire.
- In Season 2, the White Walkers are first seen unobscured accompanied by a raging snowstorm (Ice).
- In Season 3, Daenerys, whose house is analogous to fire, liberates the slaves of Yunkai.
- In Season 4, Arya, whose house is analogous to ice (as well as their ancestral sword being called Ice), sails away from Westeros.
- The pattern continues in Season 5, with Jon Snow. His last name is literally Snow, and he is a member of the house of Stark who is closely associated with Winter and Ice. Doubly so since as a member of the the Nightswatch he has in fact actually not only travelled further North than any other character, but he has actually fought the ice-monsters that live in the farthest North. And even more with the fan theory that is confirmed next season that Jon is also a Targaryen (a house associated with dragons and fire) and he will be resurrected by the fire priestess Melisandre
- In Season 6, Daenerys, mother of dragons, closely associated with fire and dragons, sails for Westeros with her fiery dragons. In fact there's a very fiery scene at the start of the episode as well, where several important characters are killed in an explosion
- Season 7 ends with the icy White Walkers bringing down a portion of the Wall and crossing into Westeros proper
- Season 8 ends with the first signs of spring emerging from winter. Furthermore, midway through the final episode, Drogon destroys the Iron Throne with dragonfire, symbolically ending the Game of Thrones.
The "Rains of Castamere" symbolizes Tywin V Tyrion as much as the Lannisters alone.It's possibly unintentional, but Tyrion states, "All dwarfs are bastards in their father's eyes," in the first season. Jon Snow has established that bastards are considered to have flipped the colors of their father's sigil: to Tywin, Tyrion isn's a true golden lion, he's a red one. "A coat of gold, and coat of red, a lion still has claws..." This becomes apparent when the leitmotif plays in the credits after Tyrion's trial in The Laws of Gods and Men the moment where he has officially declared himself an enemy of his father and sister and glares them in utter hatred and fury.
The Title Game of Thrones...The name of the TV Series as opposed to A Song of Ice and Fire or perhaps some of the other book titles - A Storm of Swords and A Clash of Kings. For one thing those titles are too "fantasy" or too "medieval", they suggest something suited to a special genre and associated theme. The TV series is a fantasy series but at the same time it is less fantastic than the books (which was less fantastic than other fantasies). The title Game of Thrones sounds like a fantasy but it also has something timeless to it, it's exotic without being medieval and fantastic. This also suits the series which has a different dimension than the books. The books is about the fantastical elements interacting with a world of Realpolitik and the tension between ideals, medieval chivalry and political necessities. The TV show is largely about debunking fantasy and medievalism altogether, its mostly about politics and living in a feudal world, which pegs it to other genres like The West Wing while retaining an exotic element.
Euron Greyjoy is the Hero of the StoryEuron's story actually hits every vital note for a classic Hero's Journey. He leaves his homeland, he has adventures in foreign lands that grant him knowledge and power, he overthrows his people's evil king and is crowned in his place, he slays a dragon, and he beds a queen. These are all the things Heroes do, only Euron is as far from heroic as could be. Every single classic Hero's accomplishment is turned on its ear and made into a bad thing. Many reviewers have pointed out that Euron is the only character in the story who gets everything he wanted, and he does it by hitting every note in a mythic story arc. In a thousand years, when storytellers tell the tale of the fall of the Seven Kingdoms, Euron will be the hero. And considering that the dragon he killed belonged to Daenerys, who went on to burn King's Landing and will likely be remembered as nothing more than a mad tyrant like her father (hated by most of Westeros), Euron will preassembly be remembered as one of the greats for his part in bringing down a tyrant, similar to Robert Baratheon. He may not have struck the final blow, but his contributions were some of the most signfificant.
The Dragon as an incarnation of Appeal to ForceThe Targaryens ruled solely by virtue of superior firepower. When Aegon the Conqueror established his realm, he didn't bother with any kind of political smokescreen: he didn't invoke legal precedent, or claim Divine Right of Kings, or a mandate from the people. He took his dragons and he conquered. During Robb's rebellion, his supporters say as much, "We bowed to the Dragons, and now the Dragons are gone." Humans don't rule the Seven Kingdoms. Dragons do, or rather, whoever the Dragons serve do.
At the end of the series, the final decision as to who shall sit on the Iron Throne is made by Drogon. Not any king, priest, or rich man. Not even the common sellsword whose loyalty they compete to earn. The sword itself decides. And Drogon decides nobody will. The Game of Thrones is over, and nobody won. Because the Last Dragon said so.