The classics say one thing, modern schools are doing another - Who is right?
This is something I've spent a lot of time looking at, and the gap between what the classical neidan texts actually say and what most modern schools teach is wider than people realise.
The classical position is straightforward. You fill the dantian, the small orbit opens from the pressure of that fullness, the filling continues, and eventually the surplus overflows into the extraordinary vessels and the macrocosmic orbit. No separate technique is needed for each vessel. The opening is a consequence of abundance.
Zhang Boduan's Bamai jing states it plainly: all people possess the eight extraordinary vessels, but in ordinary people they remain closed. Only the immortals open them, driving them with the yang qi. It names the agent, the accumulated yang qi, but no method for each vessel individually. It then adds that once this source stirs, all the vessels open through together. Not one at a time. Together, from a single abundance.
The Xingming guizhi describes the same principle as a cascade: rest the spirit in the lower centre, and over time the original qi fills daily. When the spirit is vigorous the qi flows, when the qi flows the blood harmonises, when the blood harmonises the bones grow strong, when the bones grow strong the marrow fills. Each level fills as a consequence of the one before it. The practitioner's only task is the first clause: rest the spirit here. Everything else is overflow.
The modern schools do something very different. They bring the extraordinary vessels forward and work them directly, often early in the training, with specific breathing patterns, guided routes through the channels, and step-by-step instructions for each pathway. The belt channel gets rotation exercises. The central channel gets vertical breathing along the core. The heel vessels get guided awareness rising from the ankles. The governing vessel gets spinal wave sequences. These are treated as practices in their own right rather than as openings that arrive from fullness.
These methods appear abundantly in modern practice manuals but not in the classical source texts. The classics name no distinct technique for the macrocosmic orbit and describe the opening of the vessels only as a consequence of abundance.
Considering the supposedly unmistakable signs of the greater medicine forming and the lack of people experiencing this in a safe and natural way.
The signs are:
the dantian blazing with fire
both kidneys boiling like soup
eyes emitting golden light
wind rising behind the ears
eagle crying behind the brain
body surging, nose twitching
Zhang Sanfeng's describes it as a thunderclap shaking heaven. Shao Kangjie: Suddenly at midnight a clap of thunder, and ten thousand gates open one after another. Zhong Liquan: The accomplished one gathers the precelestial qi, and one night the thunder does not stop.
The Wuzhen pian uses the character for lightning directly: the lightning of Kan roasts and thunders in the place of metal and water.
A practitioner account from Zhao Bichen's lineage describes the experience as: the whole body like ants crawling, then suddenly the dantian heats up and the whole body goes tingling and numb.
Any of you guys already working on the middle dantian or upper dantian experience the production of the greater medicine as explained in the classics before starting with them?