Na Zi Fa (daily cycle based on earthly branches)

The easiest method to use chronoacupuncture is to calculate the double hourly branch for a given Local Solar Time and look up the channel that is open on that moment. There are different approaches on which point to be used on that open channel:

• Horary point (Shu transporting point that has the same element as the open channel)
• Yuan source point
• Luo point of the open channel to feed into the Yuan source point of the coupled meridian
• Yuan point combined with the inner energy point of the open channel
• Tonify the mother element when the open channel is deficient according to the Sheng-cycle (eventually tonify the mother element of the channel that was previously open)
• Reduce the son element when the open channel is in excess according to the Sheng-cycle (eventually reduce the son element on the channel that will be open next)
• Use exit point of the open channel and the entry point of the channel that will be open next.

Any other point can be use on the open channel when it applies to certain symptoms, patterns or pathologies.