When we examine exactly what we can learn about our true nature, which is below the known personality, we find nothing. This is good news, because before we begin to investigate, we unconsciously assume that we are limited individuals. We think we have enough evidence of this, based on thoughts, sensations, and bodily sensations. 

However, since we do not find what we really are upon closer examination, this investigation at least takes us out of the realm of supposed knowledge – which is demonstrably unfounded – into the unknown. Here we are in ignorance of who we really are, we do not know whether we are limited or not. 

In this ignorance we know very well how to cook, how to give a lecture, how to drive a car, etc. This not-knowing refers specifically only to the realm of who we really are. To live in not-knowing is a radically revolutionary attitude. In not-knowing, one no longer lives in the known assumptions about oneself and the world and remains a witness to how life unfolds.