It’s a popular theme in marijuana use – the “entourage effect.” It’s defined as the broad-spectrum sense of wellness derived from consuming an unaltered or concentrated form of cannabis when all the natural chemicals found in cannabis are ingested simultaneously.
Lester Grinspoon a Psychiatry professor who in the 1960s began studying Marijuana and did write the two most important books on Marijuana ... Marijuana Reconsidered and ... Marijuana The Forbidden Medicine. Here he describes his "First Experience Smoking Pure Cannabis" - remember that in the United States Marijuana is used PURE and not mixed with Tobacco.