Chen Xiang made the True Qi of Wood, inside his body, flow into his meridians. Cycling through his body, again and again, the True Qi moved erratically, sometimes fast, sometimes slow. Occasionally it was similar to a large river, yet at other times, it flowed gently, like a small mountain stream.
Notes:
[1]: a type of fire made of True Qi used for alchemical purposes (add more if needed TL)
[2]: here Heart Law(心法) can be interpreted as sutra
[3]: Qi generated by the internal body
[4]: An [Exercise] is basically a cultivation practice which strengthens you