The three cardinal essences derived from the tree are refined from the leaves, bark, and wood of the donor plant. It is necessary to harvest these three cardinal components in the correct proportion so that they will each yield the desired amount of cardinal essence for our use. The tree exerts its influence over a much larger area than do the smaller flowering plants.
Here follows an account of the harvesting of a branch from the oak tree (Quercus robur
). This particular oak is growing in a secluded grove deep in the heart of the oldest oak forest in Europe, a place of supreme significance to me. This huge,...