I think we could reasonably say that we each of us have all had some experiences that ?'some' others have not and vice versa, that some have reflected on some issues others have not. And that's fine, no judgements there.
If we reflect and look upon the same issue we may come out with different views, but there is also the observation that there are some things that if they are true for you they would also true for me. If I come upon what I think is a universal truth then I would adopt the bias that
Craven keeps pointing out; that an understanding of that truth cannot have fundamental disagreements unless the understands are wrong or flawed in some way. We cannot have major disagreements about the truth if ?'truth' is >this< and not that. So it would seem that there is required a level of trust, or believe and/or of course a great amount of curiosity and/or the intuitive sense or ?'gut' feeling that nondualism is correct, and/or in the least an attitude that say okay lets look and see.
For many inquiry starts at the intellectual level; a ?'self' searching that include the questioning of common sense juxtaposed with experiential observations, "Every perception is opportunity for satori", meaning it is experiential.
"Satori is a Japanese word that roughly translates into "individual enlightenment." The Chinese refer to it as "Wu." Satori can also be described as a flash of awareness. Traditional ways of acquiring satori have been through meditation, introspection, and through the use of koans or "riddles." Some people achieve satori through dialogue much like how Greek philosophers analyzed and discussed life through lectures and inquiry with students and peers. Our students are encouraged to achieve satori through the combined efforts of daily action, relating to others, meditation practice, and inquiry into the nature of people. There is neither a right nor wrong way to acquire satori. You can neither force it nor deny it by way of the Socratic method or from cup of green tea. It simply is a profound personal experience that moves a person towards freedom.
http://satoridharmahawaii.htmlplanet.com/
"freedom' being a permanent or temporary disidentification from biology and localised awareness.