the essence of deep-rooted spirit lore is that supposed spirits of one kind or another – spirits of the dead, phantasms of the living, wraiths, or nature entities like fairies move through the physical landscape along special routes. in their ideal, pristine form, at least, such routes are conceived of as being straight, having something in common with ley lines. by the same token, convoluted or non-linear features hinder spirit movement i.e. labyrinths and mazes.