First, there is a special one (Note: Founded by Hahnemann) whose results are not quite certain because even the most skilled physician cannot always recognize for sure where and in which parts the soul is weakened. Therefore, he is unable to apply the correct soul specific. This is, of course, possible to a physician who is reborn in the spirit, whereas for one who is not completely, or usually not at all reborn, it is, notwithstanding his discernment and skill, difficult or even impossible. – The Healing Power of Sunlight, Chapter 1, Paragraph 16