offers a variety of native and mass-labelled reference standards for legacy environmental contaminants such as polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs).
These practices tend to be for magical or religious purposes, such as divination or communicating with gods and spirits.
It’s important to remember, however, that what we see as occultism was the scientific establishment of its day, with exactly the same purpose as modern science – curing human ills and increasing knowledge.
The history of hypnosis, then, is really the history of this change in perception.
In the 21st century, there are still those who see hypnosis as some form of occult power.
On the one hand, a history of hypnosis is a bit like a history of breathing.