An example
I provide the following as an example for clarification: a physician who studies at a medical college has not opened the bodies of all human beings to know all their secrets. However, when he commences his practice, he is aware of the secrets of his patients to some extent. He can detect the causes of their internal pain with an external examination. Why? Because there is a united map for all human beings, and since he already knows the general underlying principles of medicine, he is knowledgeable about that patient as well. This physician also knows the secrets of the bodies of animals, because there are incredible similarities between a human’s bodily organization and animals. Furthermore, since there are also similarities to plants, he is also informed about the nutrition and lives of plants, albeit to a lesser extent.