O thou yearner after the Kingdom! Each Manifestations is the heart of the world and the proficient Physician of every patient. The world of humanity is sick, but that skilled Physician hath the healing remedy and He bestoweth divine teachings, exhortations and advices which are the remedy of every ailment and the dressing for every wound. Undoubtedly, the wise physician discovereth the needs of the patient at every season and prescribeth medicine. ‘Abdu’l-Bahá, Tablets of ‘Abdu’l-Bahá Abbas. Available from https://reference.bahai.org/en/t/ab/TAB/tab-588.html#pg538