If you want to learn to catch a healing fish, reading about homeopathy or dreaming on the Internet will not tell you when you have a bite. You need to hold the pole and feel the line. To learn homeopathy, from the beginning you need do cases. At first memorizing the power of a few remedies is enough to heal a superficial wound. Arnica will always heal. But, if the wound is deep in your mind or body, memorization or Internet surfing will not heal. Professionals use tools that are simple enough so you can use them too.