One must come to the point where one honestly recognizes one's extreme poverty in the Face of God. This is infused knowledge and one must beg for it. A great grace, self-knowledge opens the door to al the rest of the grace, including detachment.
But, one cannot simply will these states. God remains the source of all grace and love, as well as self-knowledge.
St. Catherine of Siena, too, taught the same doctrine: that the knowledge of God and that of our indigence are like the highest and the lowest points of a circle which could grow forever.(25) This infused knowledge of our misery is the source of true humility of heart, of the humility which leads one to desire to be nothing that God may be all,amare nesciri et pro nihilo reputari. Infused knowledge of the infinite goodness of God gives birth in us to a much more lively charity, a more generous and disinterested love of God and of souls in Him, a greater confidence in prayer.
As St. John of the Cross says: "The love of God is practiced, because the soul is no longer attracted by sweetness and consolation, but by God only. . . . In the midst of these aridities and hardships, God communicates to the soul, when it least expects it, spiritual sweetness, most pure love, and spiritual knowledge of the most exalted kind, of greater worth and profit than any of which it had previous experience, though at first the soul may not think so, for the spiritual influence now communicated is most delicate and imperceptible by sense." (26) Garrigou-Lagrange Three Ages of the Interior Life