Datura is sacred to some Native Americans where it has been used in ceremonies and rites of passage. Among the Chumash, when a boy was 8 years old, his mother gave him a preparation to drink. It was to be a challenge to the boy to help him develop the spiritual well being required to become a man. Not all of the boys survived. Datura has been used to induce hallucination for recreational purposes. Internal use of the plant can induce auditory and visual hallucinations. Its active compounds are concentrated in the seedpods and roots; concentrations vary widely between samples, and onset is slow. This makes dosage estimation difficult and adds further risk to a material that already has potentially lethal side effects. Effects may include dry mouth, hyperthermia, profuse sweating, decreased sweating, impairment, drowsiness, restlessness, lethargy, psychosis, amnesia, hallucinations and sensory distortions.