I mentioned quite a few books that make great Lenten reading, but there is also a treasure trove of spiritual writing by the popes and it is available free of charge at the Vatican web site. May I suggest you read Familiaris Consortio, an Apostolic Exhortation by Pope John Paul II? Just listen to this:
On the other hand, however, signs are not lacking of a disturbing degradation of some fundamental values: a mistaken theoretical and practical concept of the independence of the spouses in relation to each other; serious misconceptions regarding the relationship of authority between parents and children; the concrete difficulties that the family itself experiences in the transmission of values; the growing number of divorces; the scourge of abortion; the ever more frequent recourse to sterilization; the appearance of a truly contraceptive mentality.
At the root of these negative phenomena there frequently lies a corruption of the idea and the experience of freedom, conceived not as a capacity for realizing the truth of God's plan for marriage and the family, but as an autonomous power of self-affirmation, often against others, for one's own selfish well-being.
Worthy of our attention also is the fact that, in the countries of the so-called Third World, families often lack both the means necessary for survival, such as food, work, housing and medicine, and the most elementary freedoms. In the richer countries, on the contrary, excessive prosperity and the consumer mentality, paradoxically joined to a certain anguish and uncertainty about the future, deprive married couples of the generosity and courage needed for raising up new human life: thus life is often perceived not as a blessing, but as a danger from which to defend oneself.
The historical situation in which the family lives therefore appears as an interplay of light and darkness.
This shows that history is not simply a fixed progression towards what is better, but rather an event of freedom, and even a struggle between freedoms that are in mutual conflict, that is, according to the well-known expression of St. Augustine, a conflict between two loves: the love of God to the point of disregarding self, and the love of self to the point of disregarding God.(16)
It follows that only an education for love rooted in faith can lead to the capacity of interpreting "the signs of the times," which are the historical expression of this twofold love.
The Influence of Circumstances on the Consciences of the Faithful
7. Living in such a world, under the pressures coming above all from the mass media, the faithful do not always remain immune from the obscuring of certain fundamental values, nor set themselves up as the critical conscience of family culture and as active agents in the building of an authentic family humanism.
Among the more troubling signs of this phenomenon, the Synod Fathers stressed the following, in particular: the spread of divorce and of recourse to a new union, even on the part of the faithful; the acceptance of purely civil marriage in contradiction to the vocation of the baptized to "be married in the Lord", the celebration of the marriage sacrament without living faith, but for other motives; the rejection of the moral norms that guide and promote the human and Christian exercise of sexuality in marriage.