Jueyin  Master of the Heart - Functions

The Pericardium is very closely related to the Heart.  The fact that it is a bag for the Heart comes from both TCM and western science.  

TCM believed that this bag was there to protect the Heart from external pathogenic invasions.  The pericardium governs blood, and houses the mind, both functions being the same as the Heart.  As a practitioner or student we know that the Pericardium meridian points have a powerful influence on the mind.  The Pericardium also has an effects on a persons relationships

Links - Pericardium: Fire Energy Yin Organ (Bioenergetics)