That is probably more complicated than you would think. I think Orual wants many things, but most of all she needs the gods to show her the truth, even though it is terrible. Once she has seen the truth for what it is, she hopes the gods will restore Psyche to her Groom, since it is Orual's fault that Psyche was separated from him in the first place. She is also seeking peace and forgiveness for herself, but only after the pivotal turning point in the book. This is a strange book in that it doesn't follow the typical plot patterns of novels, but instead it abruptly changes towards the end of the story, and Orual's defensive stance changes as she prepares to meet death herself. I encourage you to read the book if you haven't!