The chaplain to the Carmel, Father Youf, insisted a lot on the fear of Hell. The preachers during spiritual retreats at that time emphasised sin, the sufferings of purgatory, and those of hell. This did not help Therese who in 1891 experienced, "great inner trials of all kinds, even wondering sometimes whether heaven existed." One phrase heard during a sermon made her weep: "No one knows if they are worthy of love or of hate." However the retreat of October 1891 was preached by Father Alexis Prou, a Franciscan from Saint-Nazaire. "He specialized in large crowds (he preached in factories) and did not seem the right person to help Carmelites. Just one of them found comfort in his words, Sister Thèrèse of the Child Jesus … preaching on abandonment and mercy expanded her heart".