Many of the things they experienced have become entrenched in our homeopathic literature and form the basis of much of the information we still use today!
Many homeopaths experimented on themselves in the full knowledge of what they were taking - and they faithfully recorded their findings and published them in materia medicas as provings. However our original bedrock provings were not done in that way. In an attempt to improve the quality of provings many modern provings are conducted double or even triple blind in an attempt to remove 'bias' from the findings.
Nowadays provings are almost exclusively conducted with homeopathic potencies not crude substances. The original provings were a mixture of recorded poisonings (toxicology) and the effects of crude substances originally tested on animals and later taken by human volunteers. From provings comes a basis on which to determine what symptoms and illnesses substances cause and therefore cure in potentised form and they are the source of much of our information. Provings are a foundation stone of homeopathy. Before discussing the Meditation Provings in more detail a quick review of the more traditional proving methods is warranted: The remedies can be purchased from Helios Pharmacy in UK. (alternative books have also been published by Colin Griffiths). The author of these proving volumes is Madeline Evans. Each of these was proven using a new approach. These are a set of over 80 remedies drawn from a variety of sources. The Meditative remedies have been in use since the 1990's.