Calea zacatechichi, also called Leaf of God, Dream Herb or Bitter Grass, is a medium-sized hallucinogenic herb used by the Chontal Indians before sleeping to increase dream recall and to make it vivid and clear.
It is also used by Shamans for obtaining divinatory messages and in Mexican traditional medicine for increasing metabolic rate. According to natives, dog grass, another name for Calea, is invaluable in terms of clearing the senses, inducing dream visions and speeding up healing.
And to back up the claims linking C. zacatechichi and lucid dreaming, a study in 1986 by the Journal of Ethnopharmacology said its administration appeared to enhance the number of dream recollection during sleeping periods and that it induced episodes of lively hypnagogic imagery. In conclusion, authors stated that Calea zacatechichi could improve overall dream experienced, dream recall ability and hypnagogic imagery experiences while sleeping.
If you want to try the dream herb yourself, make a tea by pouring boiling water over one to two grams of shredded, dried leaves, letting it steep for 10 minutes. Drink it an hour before sleeping.
For the best results, one can use three to 25 grams of shredded, dried leaves to drink as bitter tea. Alternatively, one can use a Calea zacatechichi powder, if using a capsule machine.
Otherwise, according to the World of Lucid Dreaming, the best way to take it is to use ready-made capsules, or pack dried leaves into empty gel capsules. For best results, you should take one to two capsules after four to six hours of sleep for sufficient sleep before going on longer REM cycles. Alternatively, tinctures, which 10 to 15 ml can be added to a drink, are also available.
Calea offers a drowsy and restful psychoactive effect, including mind clarity, but despite Mexicans considering it to contain hallucinogenic alkaloids, it is yet to be confirmed by scientific studies, Azarius.net claimed.