Roman Catechism 8.23

Chapter 8 — Part I: The Creed — Article VI: He Ascended into Heaven, Sitteth at the Right Hand of God, the Father Almighty

Section 23. Another most important advantage is that He has taken our affections to heaven and inflamed them with the Spirit of God; for most truly has it been said that where our treasure is, there also is our heart. And, indeed, were Christ the Lord still dwelling on earth, the contemplation of His human nature and His company would absorb all our thoughts, and we should view the author of such blessings only as man, and cherish towards Him a sort of earthly affection. But by His Ascension into heaven He has spiritualised our affection and has made us venerate and love as God Him whom, on account of His absence, we see only in thought. This we learn in part from the example of the Apostles, who while our Lord was personally present with them, seemed to judge of Him in some measure in a human light; and in part from these words of our Lord Himself: It is expedient to you that I go. The imperfect affection with which they loved Christ Jesus when present had to be perfected by divine love, and that by the coming of the Holy Ghost; and therefore He immediately subjoins: If I go not, the Paraclete will not come to you.