In that, the effects of the family can also be seen in the same way as effects on the environment. Through his letter is the undeniable proclamation of the family. And its’ defense as an institution between one man and one woman. That it is “a plenary mark” on society. He describes the family as essential and necessary for society to grow, and build. His letter was a framework on Pastoral guidance on the basis of protecting the family to those with Pastoral responsibility in the Church. And thus re-affirms the necessity of Salvation through the family as well: the Domestic Church.