Far over the misty mountains cold
To dungeons deep, and caverns old
We must away,'ere break of day
To find our long forgotten gold
The pines were roaring on the height
The winds were moaning in the night
The fire was red, it flaming spread
The trees like torches blazed with light.

Everyday you hear this song from your grandparents. They told you it's about a forgotten treasure that is so full of riches that it driven the king into madness. This madness is called dragon sickness, beacuse of the king green it attracted a dragon. Now the treasur guarded by a dragon and the people who live in the mountains are no more. You wanted to go to misty mountains but the journey is long and full of danger, but before you decide open your door frist .

(Guys the clips and the song doesn't belong to me but to the creator and directors of the hobbit)