traditionally it's used by "medicine men" for spirit journeys & such. it's a sage & grows in the southwest & mexico. the stuff you find on the market is actually clones, as it very rarely produces seeds. it's a highly spiritual plant & as with any hallucinogen, it should be respected. that's why people freak out on the stuff...cuz they don't realize what they're getting themselves into.
you wanna trip? stick to LSD. you've gotta crawl before you can fly.