The first time I remember praying the rosary as an adult was for a silly, vain intention. My wedding was approaching & I had my heart set on a beautiful, sunny day. My mother has always been close to the Blessed Virgin Mary & had given me a little fold-up card with the prayers and mysteries on it. She told me to pray with an intention and make it something big. That way, if God saw fit to deliver, I would know that my prayers were aided by the devotion.