Perhaps it all comes down to the simple observation that the eye can't see itself. So you could say that whatever is experiencing can't be experienced - to which it might be replied that what need is there of an experiencer when all there is is experiencing? You need to add that nothing that can be known or experienced or inferred can be this experiencing which must in turn be unchanging and without flavour or any other distinguishing marks including the absence of distinguishing marks. From this point on it is not a matter then of waking up but only of the gentle dissolution of erroneous ideas imposed upon what simply is. Experience is then the joyous absence of an experiencer and the still more joyous absence of that absence.