Now it has to be understood that her sensitivity was not taken away. In fact Pauline says in the beatification process that in Carmel she was just as sensitive to hurt as anyone else. The grace that was given was [that] she was able to make choices in the midst of her over-sensitiveness and I think that says a lot to us, that we often are not healed of emotional wounds but God gives us the strength to do his will and that makes us holy.
You don't have to become healed emotionally to grow in Holiness. People don't make that distinction. I think a lot of this these aspects of Therese's life, what she would consider her greatest conversion . . . [t]he trauma in her early childhood, a lot of this stuff gets gets sugar coated. . . . I think important or foundational or key to understanding . . . the power of Therese's message [is] that you don't become a saint overnight, you're not . . . given that emotional healing and grace, but rather you're given another grace that where God helps you to overcome in particular moments and so it becomes like an everyday recurrent bearing in strength from God's grace . . .
[W]hen people come to me for Spiritual Direction I say to them--and this might sound strange-- whatever you do don't try to overcome something in yourself. . . . No, if you make your goal trying to overcome something in your life you're going to get discouraged because you might not be able to and maybe God doesn't want you to. But all I want you to do is do your best every time this temptation comes up because that's how you grow in holiness. These wounds are often the very context of our transformation--not just the context but the location exactly.
Fr. Marc Foley OCD, discussing his book The Context of Holiness on the CarmelCast podcast.