The Satchel Charge is made in the style of Scandinavian mythology. It depicts the world serpent Jörmungandr.
The serpent Jörmungandr was one of three children born to the giantess Angrboda from Loki. His sister was Hel, the mistress of the underworld of the dead, and his brother was the monstrous wolf Fenrir. He lived in the world's oceans, surrounding the land of people - Midgard.
The image of the great serpent on the door meant the inaccessibility of this place and instilled fear in the eyes of the offenders.
The door is painted in the classic colors of the Viking way of life.
The presence of red was considered an indicator of high status among the Vikings.