What exactly is this saying? This is under the section speaking about the blessings of marriage. And, this is under blessing number two, which is the "blessing of faith".
PG, I am not familiar with Denzinger. I have searched the Encyclical Casti Conubii http://w2.vatican.va/content/pius-xi/en/encyclicals/docuмents/hf_p-xi_enc_31121930_casti-connubii.html and have been unable to find this quote, so I presume it is commentary on the encyclical,which is arranged in 130 paragraphs with no other sections or headings.
I found it at the link you gave. It was paragraph 24: 24. This mutual molding of husband and wife, this determined effort to perfect each other, can in a very real sense, as the Roman Catechism teaches, be said to be the chief reason and purpose of matrimony, provided matrimony be looked at not in the restricted sense as instituted for the proper conception and education of the child, but more widely as the blending of life as a whole and the mutual interchange and sharing thereof.
I came across this other day and I was wondering about it too. How do we reconcile it with the teaching that procreation of children is the primary end of marriage?
Good find, Jayne, but not exactly what PG quoted, which was actually from Denzinger.
The quote from Casti Conubii which you have quoted is somewhat clearer, but the wording has been changed in Denzinger (for what reason I do not know).
It seems to be saying that the most important thing in this life is for spouses to work to achieve the highest good which, of course, is to get each other to Heaven.
Of course, in most cases if we follow nature and God's Law, we will bear and raise children, also for Heaven, but there are some couples who are not blessed with children. In that case, we can say that, in all cases, whether there are children or not, all Marriages are purposed for the achievement of Heaven