The proving is a vital part of homoeopathy. It is the process by which remedies are discovered, explored and added to the Materia Medica. Without provings we would not have any information on non toxic substances and only the crudest picture of the toxic ones.
Understanding how a proving works and how to read a proving gives us a much clearer picture of what we know about a remedy and how we know it. We can make a clearer judgement of how accurate and how comprehensive is the information found in the Materia Medica and so understand accurately how well it matches the picture of our patient's disease.