Obviously newborns are not the only ones who have affective knowledge. Presumably all of us do. In fact, presumably much if not all of our objective knowledge has its origins in our being affected. (That was a fundamental tenet of British Empiricism, though it may have failed to shake itself from the epistemological project.)
However, when I try to give an epistemological account of affective knowledge, I find myself led toward the skeptical conundra where I cannot know things in themselves because I only know their appearances. If I try to give an account of my affective knowledge in terms only of subjects and objects, I find myself unable to do so.
That inability means that the truth of the world (objective truth) is inadequate to affective knowledge. It doesn't mean we should give up objective truth. But it also means there are more categories of truth than the terms subjective and objective allow us.
And the fact that objective truth has its origin in affective truth makes their relation hierarchical, a hierarchy which probably explains the inability of objective truth to give a satisfactory account of affective truth: it cannot explain what makes it possible.
What follows from all these dry and arcane philosophical claims? That if we are seduced by the truth of the world, that truth may conceal from us our knowledge of ways in which we are touched, not only physically by things, but also in relationships with others including God.
If we are seduced by the truth of the world, we may find it impossible to see any reasons but the reasons of the world, in spite of the fact that we have always already had other reasons or we wouldn't have even the reasons of the world.
Without those other reasons, relationships, the most important way in which we can be affected will be swallowed up in the merely subjective. Without relationships, the loves of our lives are no longer real. Nor do we have relation with God.