Brave new world

I just read a few things at wikipedia, and it seems like soma was an ancient drug, known as the drug of gods...and Huxley saw it, thinking: great, a drug for my new book!
Hm.
In origin times, soma was a drug which gave illusions to its consumers, and they celebrated a ceremony of...sacrifice people for some goddess or god.
its not clear how to produce soma, the drug in huxleys book is not quite the same, because it doesnt make illusions, it only removes your fears.