"Verily Thou art a hidden God, thc God of Israel, the Saviour " cries out the prophet Isaias (xlv. 15), Yes, undoubtedly, God is a more hidden God in the Eucharist than anywhere else. His greatness lies concealed under the littleness of a host, His power under the feeble species, His universality under an atom, His eternity under a moment, His wisdom under an apparcnt folly, There indeed is He the hidden God; more hidden than in Mary's womb, more hidden than in the crib, more hidden than under the darkness of Calvary, more hidden than in the gloom of the Sepulchre. For here His humanity, His divinity, His glory, His beatitude- all, are hidden. '1'0 all un believers and heretics lie is hidden indeed. To many luke-warm Catholics, nay, even to many of those who stand at His altar and touch His sacred body He is hidden. Alas, that that adorable sacrifice and sacrament of the altar should be to so many a hidden treasure; that there should be so many who have eyes and see not, although to them is granted to behold what kings and prophets, and patriarchs and saints have sighed in vain to gaze on Alas that there should be so many who deserve the reproach which our Lord made to his disciples, "I was a stranger, and you received me not." "Your little faith in my presence in the blessed sacrament made Me appear to you a stranger, although quite near. Our appreciation of the Holy Sacrifice of the Mass is not as much as it should be. This book will prove quite useful in increasing our appreciation of this magnificent gift from God.