When I saw this quote, I realised that it explains so much of the pain of those of us who can't have children - especially in the early days. If we believe that we are unworthy, then it is easier to think that others also see us this way. Holding onto our unworthiness just invites pain and judgement in, yet it is hard to let go, to be kind to ourselves, to stop judging.
Once we stop believing in our unworthiness, it doesn't matter what others think about us. We know, deep in our hearts, that worth or lack of worth has nothing to do with whether or not we could have children, whether or not we are parents. Realising this, believing it, lifts a burden and liberates us - from our own judgement, and from that of others.