问曰：“何谓神气？”
what is “spirit energy”
答曰：“神是火，火属心。气是药，药属身。神、气，子、母也。虚静天师云：‘气者，生之元也。神者，生之则也。持满驭神，专气抱一，神依气住，神气相合，乃可长生。’三茅真君曰：‘气是添年药，心为使气神。若知行气主，便是得仙人。”
spirit (shen) is fire, the mind is categorized as fire,.
the qi is medicine, the body is categorized as medicine.
The spirit and qi are the mother and child.
Xu jing tian shi said: qi is the origin of life. Spirit is the requirement for life.” when it is grasped fully it drives the spirit, focus on holding the qi as one. The spirit covers, the qi resides, the spirit and qi harmonize together. Then you can lengthen life. San mao zhen jun said: qi is the medicine which can be increased over the years, the mind is where qi and shen move from. If you know how to command the qi to move, you can begin to grasp immortality.