The soul looks to God under two aspects or forms: First as the object of all its affections, or as an infinitely good and lovable being, and this imagine robs the heart; and insofar as he is good, infinitely beautiful, this is, infinitely perfect, he captures our intellectual vision, our thoughts and meditations.
In this regard, the theological virtues and their gifts cause God and the soul to become on single thing through love and purity of thoughts. While this divine union takes place primarily and mainly in the soul, all the other virtues are like aids, attendants and armies of that guard, assist and protect this work. This is the love of God for the soul and the love of the soul for God.

Letter to Juana Gratia (1857)