The author states: "Therefore I have written this little Book. I have tried to tell you all I know about the Precious Blood, all that many years of hard study and much thought have enabled me to learn; and I have tried to tell it you as easily and as simply as I could. I thought I could not please you better than by this. I thought I could not show my gratitude to our Blessed Redeemer better than by striving to increase a devotion whieh he himself, by his blessing on the Confraternity, has shown to be so pleasing to him. I believed we could not repay the paternal kindness of the Sovereign Pontiff, our Father and Founder, who bas enriched us with Indulgences, in a manner more welcome to himself than by an effort to propagato the devotion to the Precious Blood, in whose honor he has established a new feast in the Church of God. I know that I could not please myself better, than by magnifying the Precious Blood, which of all the glorious objects of Catholic devotion has been for years the dearest to my heart. Accept, then, this little but loving gift. Let it stand as a memorial of my love of you, of your love of Jesus, of the filial devotion of both of us to the Holy Father, and of our united thanksgivings to our Blessed Savior for his goodness to our Confraternity, and for our salvation through his Blood."