Introduction
Nowadays, mediation has been prescribed as a therapy to improve vascular diseases, relieve the problem of insomnia, assist asthma patients to inhale and exhale easier and ameliorate exercise performance in angina patients 1. In general, meditation can effectively reduce the daily stresses and tensions of life. It is believed to be a safe and easy tool for balancing the physiological, psychological and mental states 1,2.
Starting from ancient times, Buddhists widely has been promoting and teaching the knowledge and skills of meditation among central and eastern Asian countries, including China and India 1. They faithfully believe the implementation of meditation is a prerequisite for cultivating compassion and wisdom and deem it as a necessity for comprehending the reality. They hold a viewpoint that the scope of human’s general consciousness is not infinite, but with limits. Should we the human want to extend our lives to fully colorful spectrum of own unconsciousness and consciousness, meditation indeed offers help and guidelines to us 1.
From the perspective of Taoists, meditation resembles short-term starvation in mental manner 1. Like physical fasting which cuts off all the dietary uptake of nutrients for purification of the body essences, the mental starvation during meditation acts to filtrate and purify our mind. It helps withdraw all disturbing thoughts and distractive emotions from our mind, with a view to restoring our primary spiritual powers. This mind-cleansing process during the mental starvation is natural and autonomic in nature. The prerequisite for activating this progression of self-rejuvenation is mind and body without any input for a certain fixed period of time 1. Taoists consider “sitting silently without doing anything” an effective way of gathering adequate mental lucidity to thoroughly concentrate on taming and training the two sides of temporal mind which directs our living. Those two