This question is from a book called NIGHT by Elie Wiesel. Read the preface by Robert Brown. Why do You suppose Wiesel imposed a ten year vow of silence?

Wiesel may have imposed a ten-year vow of silence to reflect the profound emotional and psychological impact of the Holocaust on him. It could be a way for him to honor the gravity of the experience he went through, to process his trauma, and to deeply contemplate the significance of his survival and the atrocities he witnessed before sharing his story with the world.