From a
Catholic Truth Publications leaflet:
THE VALUE OF HOLY MASS
At the Hour of death the Mases you have heard will be your greatest consolation.
Every Mass will go with you to judement and plead for pardon.
At every Mass you can diminish the temporal punishment due to your sins, more or less according to your fervor.
Assisting devoutly at Mass, you render to the Sacred Humanity of Our Lord the greatest homage.
He supplies for many of your negligences and omissions.
He forgives you all the venial sins which you are determined to avoid.
He forgives you all your unknown sins which you never confessed.
The power of Satan over you is diminished.
You afford the souls in Purgatory the greatest possible relief.
One Mass, heard furing your life, will be of more benefit to you than many heard for you after your death.
You are preserved from many dangers and misfortunes which would otherwise have befallen you.
You shorten your Purgatory by every Mass.
Every Mass wins for you a higher degree of glory in Heaven. You receive the Priest’s
blessing which Our Lord ratifies in Heaven.
You kneel amidst a multitude of holy Angels, who are present at the adorable sacrifice with reverential awe.
You are blessed in your temporal goods and affairs.
When we hear Mass and offer the Holy Sacrifice in honor of any particular Saint or Angel, thank God for the favor He bestowed on him, etc., we afford him a new degree of honor, joy and happiness and draw his special love and protection on us.
Everytime we assist at Mass we should, besides the other intentions, offer it in honor of the Saint of the day.
Imprimatur:
+John J. Glennond
Archbishop, St. Louis, 1909
Try getting him to go to a Mass in the EF for a few months, see if that helps.