Ultimate Happiness

The Beatitudes respond to the natural desire for happiness. This desire is of divine origin: God has placed it in the human heart in order to draw man to the One who alone can fulfill it: We all want to live happily; in the whole human race there is no one who does not assent to this proposition, even before it is fully articulated. How is it, then, that I seek you, Lord? Since in seeking you, my God, I seek a happy life, let me seek you so that my soul may live, for my body draws life from my soul and my soul draws life from you.
God alone satisfies.

The Beatitudes reveal the goal of human existence, the ultimate end of human acts: God calls us to His own beatitude. This vocation is addressed to each individual personally, but also to the Church as a whole, the new people made up of those who have accepted the promise and live from it in faith. ---Universal Catechism reference nos. 1718-1719

Holy Eucharist

"As bodily nourishment restores lost strength, so the Eucharist strengthens our charity, which tends to be weakened in daily life; and this living charity wipes away venial sins. By giving Himself to us Christ revives our love and enables us to break our disordered attachments to creatures and root ourselves in Him: Since Christ died for us out of love, when we celebrate the memorial of His death at the moment of sacrifice we ask that love may be granted to us by the coming of the Holy Spirit. We humbly pray that in the strength of this love by which Christ willed to die for us, we, by receiving the gift of the Holy Spirit, may be able to consider the world as crucified for us, and to be ourselves as crucified to the world. . . . Having received the gift of love, let us die to sin and live for God." ---Universal Catechism reference no. 1394

Written In The Human Heart

"The desire for God is written in the human heart, because man is created by God and for God; and God never ceases to draw man to himself. Only in God will he find the truth and happiness he never stops searching for: The dignity of man rests above all on the fact that he is called to communion with God. This invitation to converse with God is addressed to man as soon as he comes into being. For if man exists it is because God has created him through love, and through love continues to hold him in existence. He cannot live fully according to truth unless he freely acknowledges that love and entrusts himself to his creator." ---Universal Catechism reference No. 27