What does it mean to pray the Rosary "well"?

What does it mean to pray the Rosary “well”?

To mediate upon the mysteries of the Rosary, it is like reading the Gospel, its the story of Jesus’ life and His Blessed Mother’s life, to pray it well is to keep your mind focused on that, not to let your mind wander off thinking about other things, to actually see His life played out in your mind’s eye so to speak.

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