Whenever I read about a novice practitioner having a Kundalini experience, I wonder how experienced the retreat host(s) are. Or if the person had a mentor with sufficient experience.
While there are many spiritual interpretations, there is also practical advice online for recovering. Walking outside (experiencing nature) is commonly suggested.
Accidentally stumbling into this disorienting experience could be (and in the case of this author, was) traumatic.
Kundalini goes up. Apparently to integrate the experience you need to bring it back down. This is the Descent of the Dove I think in Christianity (or the decent of grace). Whereas the kundalini is supposed to be hot sometimes described as liquid fire ("baptism of fire" - see where that comes from?), the descending current is meant to be cooling.
The Taoists are most vocal about the decent, incorporating it into the Microcosmic Orbit practice. Some yogis do also mention it but for them it's related to a return to the heart rather than the lower dan tien.
Anyway this is mostly theory for me at this point. I've seen enough to convince myself it's a real phenomenon but didn't see it through. I think I might not be too far off now though, but we'll see...
As to your point about novices I have read that different people react in different ways. Some just seem primed for rapid progress while some have to work for decades.
While there are many spiritual interpretations, there is also practical advice online for recovering. Walking outside (experiencing nature) is commonly suggested.
Accidentally stumbling into this disorienting experience could be (and in the case of this author, was) traumatic.