Womb is the origin of every creature being existing in the Universe. 

Once formed, existing beings are circulated in feedback system of the World and each existing being interacts through circulation in the great system of universe.

Every existence of things including living creature is an ephemeral phenomenon of substance for regression of endless circulations. Every tangible and intangible being shall not be existed alone, but existing in a holistic organic structure that can be called an Universal Womb where every being originates, changes and revolves infinitely. — <反映>