To understand the levels of sharing, it is important to understand the difference between the personality and the essence. A human being is a constellation of stories, from the micro to the macro; each story dependent upon countless others. The whole of this constellation makes up the 'personality.' Most attempts at transformation occur at the level of the personality. Shifting any story moves the whole. Living from the ground of personality has limitations, regardless of how it has been redesigned, retrofitted, orchestrated.
The essence, on the other hand, existed before the adoption of any of the stories. We generally touch upon it only in fleeting moments, during transcendental experiences.
Enlightenment is simply the act of moving from living from the ground of personality, to living from the ground of essence.
Before enlightenment, we can rehearse this shift in any and every interaction. The superficial levels of sharing occur from the ground of the personality. The personality is acutely aware of itself, and what it is putting forward. It is a show, designed to keep pace with some notion of what we think we 'should' be.