Great article - it would make sense to me that these substances were, as you said 'in-ward facing', not something you hand out to foreign visitors but something

Great article - it would make sense to me that these substances were, as you said 'in-ward facing', not something you hand out to foreign visitors but something you guard as a sacred secret. I would imagine these societies would also guard many of these practices locally, regionally. Makes me all the more grateful, thanks.