–Manual of Indulgences, Grants, First Concession.
(189) On one occasion, the Lord said to me, Why are you fearful and why do you tremble when you are united to Me? I am displeased when a soul yields to vain terrors. Who will dare to touch you when you are with Me? Most dear to Me is the soul that strongly believes in My goodness and has complete trust in Me. I heap My confidence upon it and give it all it asks. (Diary of St. Faustina Kowalska, n. 453)
September 29. The Feast of Saint Michael the Archangel. I have become interiorly united with God. His presence penetrates me to my very depths and fills me with peace, joy and amazement. After such moments of prayer, I am filled with strength and an extraordinary courage to suffer and struggle. Nothing terrifies me, even if the whole world should turn against me. All adversities touch only the surface, but they have no entry (199) to the depths, because God, who strengthens me, who fills me, dwells there. All the snares of the enemy are crushed at His footstool. During these moments of union, God sustains me with His might. His might passes on to me and makes me capable of loving Him. A soul never reaches this state by its own efforts. At the beginning of this interior grace, I was filled with fright, and I started to give in to it; but very quickly, the Lord let me know how much this displeases Him. But it is also He, Himself, who set my fears at rest. (Ibid., n. 480)