LSA is naturally occuring in natur. LSD was synthesized by Hofmann. Actually you can consider them chemical brothers, Or even use LSA as percursor for LSD. LSA is present in Morning Glory seeds or Hawaiian Baby Woodrose. And its best use is for ceremonial type tripping for sure. Its used by people for ages, way back LSD was "discovered". If done rigth, can be almost religious.. The setting makes it all I had long talks with dead folks. Kind of healing in my case..