I'm trying to find information about Saint Thérèse of Lisieux in the text, but there's no mention. What guidance can be offered when a specific saint is not named?

While the text does not specifically name Saint Thérèse of Lisieux, it provides universal principles applicable to all paths of devotion. Chapter 19 explains that the "sense of difference like 'I and Thou' is the wall between Guru and disciple," suggesting the focus should be on transcending such distinctions to reach a state of non-duality. It also teaches that God is the ultimate master ('Allah-Malik') and His ways are incomprehensible. The text encourages focusing on one's own actions and practice, stating "As the action, so the hearing; as the practice, so the benefit." Therefore, the guidance is to continue your devotion with an undivided heart, as the core principles of surrender and practice are what truly matter.