Cannabis is a Connection Supplement of, usually, mild effect.
List of Connection Supplements
Connection Supplement > Ayahuasca, Cannabis, Chloroform, DMT, Haoma, Kaneh Bosm, Kava, Ketamine, Kykeon, LSD, MDMA, Maikua, Manna, Nitrous Oxide, Peyote, Psilocybin Mushroom, Santa Rosa, Soma, Tobacco, Yaqona
Duration and impact of cannabis depends on the form ingested, and its potency. Smoking producers shorter effect (approx. one hour) while oils and sprays produce longer impact (peak at approx. 2 hours, duration 6 hours).
There is evidence that cannabis was used widely in the ancient world as a connection supplement-- "The Taoists considered cannabis to be an ingredient of one of the superior elixirs of immortality It has been found in incense burners used during funerary rites in sites in China dating back to 500 B.C. 
"Cannabis has been an important economic crop plant for six millennia. Its uses for fiber, food, oil, medicine, and as a recreational/religious drug have been prevalent throughout this period."
See also White Haoma
Archeological evidence suggests that Ancient Israelites burned cannabis during their religious worship. 
Cannabis as Connection Supplement is recognized in India.
Anti-aging: Chronic Low dose of THC restores cognitive function in mice
"Cannabis has been used for centuries to treat seizures."
- Bennett, Chris. Liber 420: Cannabis, Magickal Herbs and the Occult (p. 19). Trine Day. Kindle Edition.
- Fleming, Michael, and Robert Clarke. “Physical Evidence for the Antiquity of Cannabis Sativa L.” J. Int. Hemp Association 5 (1998): 80–95.
- Fleming, Michael, and Robert Clarke. “Physical Evidence for the Antiquity of Cannabis Sativa L.” J. Int. Hemp Association 5 (1998): 80–95. p. 80.
- Staff Writer. “Ancient Israelites ‘Burned Cannabis in Worship.’” BBC News, 2020, sec. Middle East. https://www.bbc.com/news/world-middle-east-52847175.
- Adams, Benjamin M. “Temples in India Serve Ganja for Religious Purposes.” Dope Magazine, 2020. https://dopemagazine.com/temples-in-india-serve-ganja-for-religious-purposes/.
- Hasse, Javier. “Carlos Santana Talks Cannabis: ‘It’s All About Consciousness, Man.’” Forbes, 2020. https://www.forbes.com/sites/javierhasse/2020/10/22/carlos-santana-talks-cannabis-its-all-about-consciousness-man/.
- Bilkei-Gorzo, Andras, Onder Albayram, Astrid Draffehn, Kerstin Michel, Anastasia Piyanova, Hannah Oppenheimer, Mona Dvir-Ginzberg, et al. “A Chronic Low Dose of Δ 9 -Tetrahydrocannabinol (THC) Restores Cognitive Function in Old Mice.” Nature Medicine 23, no. 6 (June 2017): 782–87. https://doi.org/10.1038/nm.4311.
- Rosenberg, Evan C., Richard W. Tsien, Benjamin J. Whalley, and Orrin Devinsky. “Cannabinoids and Epilepsy.” Neurotherapeutics 12, no. 4 (October 2015): 747–68. https://doi.org/10.1007/s13311-015-0375-5.