Salvia divinorum leaves
Salvia divinorum is one of the sacred plants of the Mazatec Indians. The leaves are chewed for about half an hour, after which consciousness gains access to another dimension. The effects of Salvia are unlike those of other hallucinogens.
At a lower dosage it generates a dream state of consciousness and helps clear the mind during meditation. At higher dosages Salvia induces a radically altered state of awareness. In this state one doesn't experience time, space and one's own thoughts the way one is accustomed to. The effects of orally ingested Salvia last for about two hours.
The most effective method of consuming Salvia is chewing the leaves for about half an hour, so the active components can be absorbed by the blood vessels and mucous membrane in your mouth. Usually 8 to 20 leaves will be enough.