The ravens fly over the earth .
The ravens remember everything ; when the ravens come back , they tell Odin what they have seen -- similar to the Munax ravens , or crawlers , which inform the Munax database of what 's on the web .
The ravens fly over the earth and remember everything ; when the ravens come back , they tell Odin what they have seen -- similar to the Munax ravens , or crawlers , which inform the Munax database of what 's on the web .