Some days you are the ax, some days you are the decapitated head ... I am usually the ax ... Usually. But one day not long ago... well, let's just say things went awry.
-- Odin (Narrator) (Asgard paragraph 1)

Importance: This quote appears at the beginning of the book. It's important because it introduces the fact that Odin has a moment of weakness. The fact that Odin, the father of Norse gods, shows weakness, introduces the theme of flawed authority that pervades the remainder of the book.

My voice sent a shock wave through the hall.
-- Odin (Narrator) (Asgard paragraph 3)

Importance: This quote introduces the possibility that Odin is an unreliable narrator. The quote could be demonstrating how powerful Odin is. However, it could also suggest that Thor is exaggerating the extent of his power. This possible exaggeration suggests that Odin's narration is not entirely reliable.

For example, on my way to Blitzen's Best, I passed Thor. I saw him for what he...
-- Amir (Narrator) (Midgard paragraph 3)