Just wearing the Scapular is an intense prayer and mystical union with the Mother of God which shows Mary that we love her every minute of every day.
Kissing the Scapular during our Morning Offering carries the offering through the day. In all our sacrifices, thoughts and deeds, it keeps us walking always under the mantle of Mary and thus doing all, as she did on earth, for God and for the Reign of Christ in all hearts.
A prayer to Mary with our hand on the Scapular is very powerful against temptation.
"The inner life of another that is known to God alone becomes to a much less degree open to us through friendship. It partially fills the desire of our incomplete, lonely hearts for completeness in another. Friendship brings out the best in a person through forgetfulness of self." - St. Thomas Aquinas