| Timespan | Meridian | Yuan point | Opposite Luo point |
| 03:00-05:00 | Lung | LU-9 | UB-58 |
| 05:00-07:00 | Large Intestine | LI-4 | KI-4 |
| 07:00-09:00 | Stomach | ST-42 | PC-6 |
| 09:00-11:00 | Spleen | SP-3 | TB-5 |
| 11:00-13:00 | Heart | HT-7 | GB-37 |
| 13:00-15:00 | Small Intestine | SI-4 | LR-5 |
| 15:00-17:00 | Urinary Bladder | UB-64 | LU-7 |
| 17:00-19:00 | Kidney | KI-3 | LI-6 |
| 19:00-21:00 | Pericardium | PC-7 | ST-40 |
| 21:00-23:00 | Triple Burner | TB-4 | SP-4 |
| 23:00-01:00 | Gall Bladder | GB-40 | HT-5 |
| 01:00-03:00 | Liver | LR-3 | SI-7 |
Na Zi Fa - Yuan points combined with opposite Luo points
A special use of the Yuan Source point is the combination with the Luo Connecting point of the meridian that is opposite of the open meridian in the Zi Wu cycle. This approach is very effective in the treatment of acute excessive conditions like migraine and vomiting.
Example
Between 19:00 and 21:00 local solartime the Pericardium meridian is open.
The Yuan Source point of the Pericardium meridian is PC-7. The meridian opposite of the Pericardium in the Zi Wu cycle is the Stomach meridian. It's Luo Connecting point ST-40 is combined with PC-7.
Between 19:00 and 21:00 local solartime the Pericardium meridian is open.
The Yuan Source point of the Pericardium meridian is PC-7. The meridian opposite of the Pericardium in the Zi Wu cycle is the Stomach meridian. It's Luo Connecting point ST-40 is combined with PC-7.