Door of Friendship

In Spirit Tracks, the Door of Friendship is a door that blocks the way to the Lokomo named Embrose located in the Fire Sanctuary. To open the door, Link has to solve a puzzle that involves eight heads made of rock that are facing towards different directions. There is a sign nearby that gives Link a clue about how to open the door by telling him a short story.

The story is about two men, who both fell in love with the same woman. One of them was always in the centre of attention, but the woman was only interested in the other man. The battle for the woman had begun, but the men eventually became friends.

The story is a metaphor, where the eight heads of rock are the characters in the story. Five of the heads are facing the man who always is in the centre of attention, while the two remaining heads are facing each other. They're the woman and the other man. To open the door, Link has to play the Song of Light between the two heads (the two men) that are facing the woman, which will make a diamond-shaped crystal appear. The crystal will send a beam of light towards the door and thus, open it.