Isn't it the key feature of the lower rational mind to draw a boundary between I and not-I, true vs false? It is this type of mind that loves to criticize, as i

Isn't it the key feature of the lower rational mind to draw a boundary between I and not-I, true vs false? It is this type of mind that loves to criticize, as it needs to label every thing as true or false. Seeing things as a spectrum, as a distribution of probabilities, is a key feature of the upper abstract mind, and it's barely developed in us today. And most people are still developing the rational mind, and usually swim in the stormy sea of emotions.