What I highlighted below in red borders on, if not outright is, superstition and I would like the citation for the approval of Pope Leo XIII.
“Those people who brawl against My religion and cast slurs on this Sacred Letter, shall be forsaken by Me.
On the contrary, those people who shall carry a copy of this letter with them shall be free of death by drowning and from sudden death. They shall be free from all contagious diseases and lightning; they shall not die without Confession, and shall be free from their enemies and from the hand of wrongful authority, and from all their slanderers and false witnesses.
Women in peril at child-birth will, by keeping this Oration about them. immєdιαtely overcome the difficulty. In the houses where this Oration is kept,no evil thing will ever happen: and forty days before the death of a person who has this Oration about him or her, the Blessed Virgin will appear to him or her. So said St. Gregorius.”