The concept of the band is based partly on the political overtones of the book Watership Down by Richard Adams. In the book, Efrafa is a fascistic warren, where women are oppressed and lives are subdued by a dictatorship. The band felt that the book dealt with human political institutions in a unique metaphorical way and thus decided to base a portion of the lyrics on it; Owsla representing the natural world and its battle to defend itself.