Right with you @michael. After 30 years of meditation and psychedelics I have come to think that this is largely about ego suppression. Once we can, not "turn it off" (because I don't think that's possible), but "turn it down" we get into that state. Very similar, maybe the same, to "flow." When our ego is suppressed we become aware that we are intimately connected to what I call "The Large Not Me" that's out there. God, the universe, whatever you want to call it, it's really wonderful. After 30 years, I have found that it becomes more and more accessible. It's really cool. Have fun on the path. Via con Dios.