It is not "forgive and forget" as if nothing wrong had ever happened, but "forgive and go forward," building on the mistakes of the past and the energy generated by reconciliation to create a new future.
Silence foreshadows and houses that fertile consciousness of Being (the unitive state) within all of us. Progressively, silence calls us into this awareness, until at some point we live in it, or realize it lives us. Then, each leaf, flower or bud reminds us of that Heart or Reality or Void in which we all have our life and being.