What is the ninth level of consciousness?

I'm doing a little research to understand **what the ninth level of consciousness is**. I learned this concept from an explanation of a saying, namely '**on ninth cloud**'. The only information I was able to find refers to Soka Buddhism. Can you tell me if this concept is also present in the Mahayana or Vayrayana translation? Or even Theravada or Zen, as long as it's not Soka.