Thanks JadC,

That is a new one for me but very helpful.
I believe that Paramhansa Yogananda practiced something similar but sent the energy spiralling around the spinal column on its way up the back.

Spiralling seems add a lot to the strength of the energy.

Also when healing visualise the energy spiralling out from your palms or fingers and of course if you make or hear the sound of OM
in your head that makes it even more potent.

You could add this spiralling marble to the Small Universe meditation and see what you experience.

Love and light
Faune