Meditation is an important practice in Qigong training because it is a necessary process for training the mind to direct and regulate the energy flow in the body. Once the energy is activated it must be coordinated with the activities of the mind, so that mind and body can benefit from the synchronization and mutual influence. The mind, when trained by meditation, is able to perceive the subtle levels at which the Qi functions, both at the level of the mind and at the level of the body.
In the first chapter of Dao De Jing, Laozi said:" The "Way" (Dao or Tao) can be taught, but here the way I speak of is different from the ordinary way; a name can be given, but I don’t want to give it an ordinary name. "Wu"–the state of emptiness (zero) is the beginning of everything. "You"–the state of appearance of initial intelligence and thoughts (one) is the origin of the manifestation of things and events. The stable state of Wu is required for observing and revealing the secret of creation and new developments; the stable state of You is required for observing and recognizing the false and the true. Both states, Wu and You, are called by different names but they both issue from the same source called "Xuan"–the state of the golden secret of all life. The stable state of Xuan (between zero and one) is the gate of internal cultivation and realization, as well as external recognition and understanding of the creation and development of everything11."
Laozi found that the state of mind between the Wu, emptiness, and the You, appearance, of the initial thought, a state which he called "Xuan," is the entry into the golden secret of all life. This xuan state of mind allows the intellectual mind to integrate with the intuitive mind and the dream system in order to work on internal cultivation and development as well as to experience and exercise internal local communications and non-local communications11. Thus, the Way Laozi taught in his Dao De Jing is the Way of Xuan (Xuan Dao -NOT ordinary Dao ), and the studies of the Way of Laozi can be viewed as "Xuan Xue" (in Chinese history from 240-589 C.E., viewed as mythology)13. For successful Medical Qigong training, the master key for activating, cultivating and managing the authentic Qi, vital energy VE3, is to develop a stable xuan state of mind.