The closing prayer is part of the Novena to Our Mother of Perpetual Help.
Mother of Perpetual Help, we call upon your most powerful name. Your very name inspires confidence and hope. May it always be on our lips, especially in time of temptation and at the hour of our death. Blessed Lady, help us whenever we call on you. Let us not be content with merely pronouncing your name. May our daily lives proclaim that you are our Mother and our Perpetual Help.
I hope that you will visit the Congregation of the Most Holy Redeemer (Redemptorists) website to learn all about the history of this beautiful icon.