The footage for the “Riddles of the Worm” video comes from some educational propaganda film created by Ford Motors in the late 1950s or early 1960s. The idea for the video is pagan americana and the alchemy of working the earth in agriculture and construction.
The lyrics in the last stanza refer to an alchemical process whereby bones, dredged from the earth become [polished, magical] stones. The montage focuses on the dynamism of earth and living materials.
The final instrumental refrain corresponds to glorious and glamourous images of ore and precious stones. This final sequence represents the completion of the alchemical work – on musical, lyrical and visual levels.