I was reading the Book of the Heavenly Cow and I came across instructions that mentions “the ninefold purification”. My internet search has failed me on trying to find what exactly this is (unless I delve in Buddhisim, but I’m pretty sure that’s not it), let alone how it’s different from any other purification. Otherwise the other source I’m finding comes from Budge, and I don’t trust that all too much.
All that it mentions is it lasts three days in the Heavenly Cow. Does anyone have any other information on this or where I could find it?