Substrate consciousness and Rigpa

I think both substrate and rigpa are not a state - they pervade into states. Substrate consciousness pervades on waking state and dreaming state - so in the substrate consciousness we can have lucid dream, where we are aware that we are dreaming (or substrate consciousness is aware that we are dreaming). Rigpa pervades sleep state (without dream) as well as waking state and dreaming state - so rigpa can be aware of rigpa when we are in deep sleep. In other words, something is awake when we are in deep sleep because rigpa is aware of rigpa. Is my understanding correct? --- I need to elaborate my questions. Rigpa is different from what is achieved from Zen or other non-dual traditions such as Vedanta or Shavism, and Rigpa can be achieved when we go one step further from being aware of being aware. In Vedanta, Turiya can be recognized when being aware of being aware, and something(not a state) pervaded into wake, dream and deep sleep state, so in Turiya we can dream with recognizing the dream(lucid dream), when we are fully settled in Turiya. But "when we go one step further," only thing I can presume is that something can be recognized when being in deep sleep. So it could be called Rigpa, as Rigpa is aware of Rigpa when in deep sleep. What I am trying to say is not criticizing his teaching; I respect his teachings. Also the explanation on Vedanta is just reference to describe the question, mostly coming from Ken Wilber's book - Vedanta is not the topic here. I just want to clarify my understanding on the teaching and what Rigpa is. Please help me to understand.