lisergics have a minor power to "control" the mind, thus isn´t so dangerous.
the role of the drugs is relax from the duties.
in the Ancient Egipt the elders had the formulae of the drugs and how to use that, so to speak, use them to cure people.
that was the prime intention, but we don´t need the drugs to cure cause the cure is within us.
so the natural drugs are useful to relax.