Each 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
- And Season 7 ends with the icy White Walkers bringing down a portion of the Wall and crossing into Westeros proper
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 tiltes - 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.