St. Thérèse of Lisieux on Trust and Purgatory

"You do not have enough trust. You have too much fear before the good God. I can assure you that He is grieved over this. You should not fear Purgatory because of the suffering there, but should instead ask that you not deserve to go there in order to please God, Who so reluctantly imposes this punishment. As soon as you try to please Him in everything and have an unshakable trust He purifies you every moment in His love and He lets no sin remain. And then you can be sure that you will not have to go to Purgatory."

St. Thérèse of Lisieux to Sr. Maria Philomena, who believed in the near impossibility of going to heaven without passing through purgatory. (Source: Annales de Sainte Thérèse, Lisieux. Nr. 610, Febr. 1982. Translated from the German. http://www.franciscan-ofs.net/ap/litfwrpu.htm)