The body or physical form returns to the earth and the two feathers reflect the physical and non physical realms and the raven symbolises the movement between the two.
The ‘generative’ process principle is symbolised by the square root of two, which geometrically is the side of a square divided by its diagonal. As a sequence, the side of one square becomes the diagonal of the next. The root of two contains the power of nature that destroys in order to progress. Disintegration of physical form allows for the restructuring necessary in the upwards motion of evolution.