>> I'm not sure exactly right now what this refers to as fifth state of consciousness, is it the eight circuit model of consciousness?

No, the fifth state here is an interpretation of the Gurdjieff system and the associated Fourth Way. Loosely the fifth state equivalent to enlightenment (satori). The specific quote is from a book by Robert de Ropp called "The Master Game."

I haven't looked into Leary's eight circuit model in years. Thank you for reminding me of it. By your description of your current state, sounds like you have found utility in that particular framework?