Unani system of medicine (Tibb-e Unani) provides a holistic approach toward human health. Unani system of medicine starts the discussion of health and disease with seven umoor-e tabiyah, which are necessary for existence of human body. In umoor-e-tabiyah, arkan-e arbaa (four basic elements) exist at prime position. The arkan-e-arbaa takes part in formation of not only human body but the entire universe. It is the basic and fundamental matter, for the development of human being. These are al-ardh, al-ma’a, al-hawa, and al-naar. Of these four arakan, al-naar and al-hawaa are light while alma’a and al-ardh are heavy. These arkan-e arbaa possesses four qualities, and have four different positions in this universe. Two heavy arakan, Al-ardh and alma’a possesses barudat wa yabusat and barudat wa ratubat respectively. While the other two light arakaan, al-hawaa and al-naar posseses harat wa barudat and hararat wa yabusat respectively. All the living and non-living bodies get existence from arakaan-e arbaa and finally dissolve into it.