How sweet the sound

How sweet the sound of the words "Da-da" or "Daddy". How painful is the absence of them. I can still hear Nate's voice say "Da-da" in my head, and I need to watch the video to remember the sound Ani's voice saying "Daddy". How my heart will soar when I hear "Daddy" from Ani again. How could I never have known before the birth of Ani that I was meant to be a "Daddy"? How was this never revealed to me?