Yet again we have another familiar sounding track. I love the bass line in this track although I kind of preferred the one in the older version of the track.
The phrase "the spice must flow" is apparently only mentioned in the 1984 "Dune" movie by David Lynch. It is mentioned by the Spacing Guild straight after the introductory credits to the film. The reason that spice is so important to the Spacing Guild is that its Navigators use copious amounts of the spice melange in order to give them a form of limited prescience used to plot safe routes for starships when they travel faster-than-light.