Extended Metaphor

   So our assignment was to find an extended metaphor, and my original idea was to go about the X-Men Series, and talk about the topic of being mutant that plays throughout the series, and how it actually represents the real life problems of "outsiders" in reality, when the author wrote the comics.
   However although I was passionate about that topic because I love the X-Men movies, I was literally listening to music and decided to switch my topic, and I have a greater passion for this certain topic. So I picked a song, and one that was written by my favourite artist; Ed Sheeran. The song is called Lego House.

  Now, if you have never seen the video, it shows Rupert Grint (ron from harry potter) and him wanting to become Ed Sheeran. This continues on throughout the video, so when he says the lines 

I'm gonna pick up the pieces
and build a lego house

if things go wrong we can knock it down

   Lego house is not literally a lego house what it means is "I'm gonna salvage whats left of what we had, and build back a relationship ( which is symbolized as a lego house) and if something happens we can start again as easy as lego.
it also has euphemism:
It's dark in a cold december
but I got you to keep me warm
Repetition:
it hapens throughout the song and the chorus!
The song isn't about a lego house but is actually about getting so lost in yourself that you have ruined things for others, and you want to build the "a lego house" which is actually the relationship and forgiveness.