In Oriental philosophy the unlimited Chi energy is the universal source of  life force which surrounds and flows through all living creatures.  Quartz Crystal is reputed to aid and increase the flow of Chi energy from the unseen core of being into the day to day physical world. 

As this life force flows more freely, it nourishes and balances the mind, emotions and physical body and corrects color-ray imbalances within them.  Since this stream of vital energy touches every facet of being, all aspects of life improve.