I do not have the courage to force myself to search out beautiful prayers in books. There are so many of them it really gives me a headache! and each prayer is more beautiful than the others. I cannot recite them all and not knowing which to choose, I do like children who do not know how to read, I say very simply to God what I wish to say, without composing beautiful sentences, and He always understands me. For me, prayer is an aspiration of the heart, it is a simple glance directed to heaven, it is a cry of gratitude and love in the midst of trial as well as joy; finally, it is something great, supernatural, which expands my soul and unites me to Jesus.
Ch. XI: Those Whom You Have Given Me, 1896–1897 As translated by Fr. John Clarke (1976), p. 242. - Story of a Soul (1897)