+ Everything essential about unique and for salvation absolutely necessary mediation of The Blessed Virgin Mary between man Jesus Christ and all the other humans is written on pages under "Three Hail Marys" and "The Immaculate Heart of Mary" links
+ The devils were forced to admit through the mouths of the humans possessed by them that no one perished in Hell who was daily devoted to The Blessed Virgin Mary;
+ E.g. Marian prayer called "Memorare" ("Remember") sums it up nicely: "Remember, O most gracious Virgin Mary, that never was it known that anyone who fled to your protection, implored your help, or sought your intercession was left unaided. Inspired with this confidence, I fly to you, O Virgin of virgins, my Mother; to you do I come; before you I stand, sinful and sorrowful. O Mother of the Word Incarnate, despise not my petitions, but in your mercy hear and answer me. Amen."
+ Marian devotions are for all humans because The Blessed Virgin Mary is The Mother of God and thus necessarily of every human (for no one and nothing exists outside infinity i.e. God)