If Ignatius was anything, he was a realist. The experience of his own life made clear to him that human beings, in their freedom, can choose not to live out God's loving desires for them. This fateful choice gives rise to moral evil in the world. This is sin. Sin is, simultaneously, an infidelity to God's indefatigable love and a deformation of the real world order, an order relating to the loving God.
Sin is defined from the human point of view as a disordered use of creation.
The human free will, meant to portray the trace of God, profanes itself and devotes itself to serving another purpose which is its own satisfaction. Creation, which should find in human beings a road to God, comes up against a wall of selfishness that upsets the destinies of human beings and the universe. Sin, in the Ignatian universe, is more than a personal and an individual event. It is a cosmic horror. The First Week of the Spiritual Exercises is about sin and the faithful love of God.