Author here - I love Dune and mostly just used the phrase for the title. But I did write this about Herbert and the drug/spice trade which might be of interest:

Author here - I love Dune and mostly just used the phrase for the title. But I did write this about Herbert and the drug/spice trade which might be of interest: https://lareviewofbooks.org/article/pharmacology/ https://lareviewofbooks.org/article/pharmacology/