Diseases are. We do not make them or unmake them at will. We are not their masters.
They make us, they form us.
They may have even created us. They belong to this state of activity which we call life. They may be its main activity. They are one of the many manifestations of universal matter. They may be the principle manifestation of that matter which we will never be able to study except through the phenomena of relationships and analogies. Diseases are a transitory, intermediary, future state of health. It may be they are health itself.