What does it mean for a Unitarian Universalist to be "born again?"
It means that when a Unitarian Universalist becomes mature, they regain their innocence. Osho says in the book, "Maturity" on page xi, "Ignorance moves on the path of desire. Innocence is the state of desirelessness. But because both are without knowledge, we remained confused about their natures. We have taken it for granted they are the same."
And, of course, ignorance and innocence are not the same thing. UUs covenant together to affirm and promote the free and responsible search for truth and meaning. That truth and meaning is to be found in a recognition, acknowledgement, and celebration of our innate innocence within based on that from which our egos have emerged.
We have forgotten our true natures and our natural inheritance which is love which the Universalists have recognized and brought our attention to.
To love your innocence is to love God and all our fellow innocent companions. When we become aware of this natural innocence we are indeed "born again."