Lately I hear Leo say very often "there are many degrees of conciousness and one is deeper than the other"  Every conscious being is conscious in the same way. Conciousness is the underlying substance by which all experience is known. Therefore the highest insight that you can have is 'I am conscious that I am concious; and Counsciousness is all there is'  How could you go any deeper? From there on, it is only the mind that deepens and manifests that understanding and aligns to the truth. That might go on and 'improve' forever; deeper and deeper.  There is an infinite amount of experiences that you can have. But you may not say that one is deeper than the other. What makes an experience seem deeper than anothers is the intensity and 'importance' your mind feels relativ to it. In the end all there is to an experience, is the knowing of the experience. Knowing is all there is