"Instead Of Causing Harm"
Rabbi Dovid Sears commenting on 164 Bullets:
Actually, there is support for your idea in the Rebbe's story of the Seven Beggars, Sixth Day, which speaks of the healing of the wounded princess through the Ten Types of Song. These Ten Types of Song allude to the ten psalms of Tikkun HaKlalli. They extract the ten poisoned arrows from the princess who has fled into the Water Castle.
Interestingly, at the beginning of the story of the Sixth Day, the Beggar With No Hands declares that he can fire an arrow and undo its damage even after it strikes its mark. Maybe this is analogous to the "bullets" of the 164 psukim, which strike their mark -- but instead of causing harm, bring about complete healing!