There's no doubt that if these beings have a reality, that means that they also exist at the mind level, and that physical illnesses are in some way associated with our thinking. For example, a person with a lot of anxiety will develop ulcers, and a person who is burning himself out in his emotions will develop tuberculosis, and a person who is holding back on his emotions will develop cancer. Cancer is like a revenge of the physical organism that is multiplying because it is being restrained. It is a question of proliferation, you know, and there is a balance of forces in nature.