The wearing of the scapular can be seen as an outward expression of an interior gift of self to the Blessed Mother to whom we can entrust any and every aspect of our lives.
"By her maternal charity, she cares for the brethren of her Son, who still
journey on earth surrounded by dangers and difficulties, until they are led into the happiness of their true home. Therefore the Blessed Virgin is invoked by the Church under the titles of Advocate, Auxiliatrix, Adjutrix, and Mediatrix." Vatican Council document Lumen Gentium 62