What Sureshvara and Sankara are in agreement about is the need for sustained meditation. This is stressed because there is a strain of gnosticism in neo-advaita. Like, you are already there man. Ramana Maharshi speaks of effortless effort which can evolve into the effortless sahaj samadhi, the everyday condition of the enlightened. At this point there are no special states that you dip into and out of for longer or shorter periods of time, there is just the steady diffusion of the divine which passes through the spiritual presence of the form of the master. If they know that nothing has really changed in them how is it I can’t make that claim? True for them ought to be true for me. My sense of why this doesn’t work is because it is a linguistic formula. Language requires metaphors to surpass altereity. They blend and merge and attempt unity in a form which is subjective. The words of a sage are not conversible. Call them pneumatic whistling.
"What we can't say we can't say, and we can't whistle it either."( Frank Ramsey)