The article aims to illustrate the way in which the reflection about the Spirituality of Liberation was strengthened during the period of time that goes from the Third General Conference of the Latin American Episcopate to the Fourth one -which took place in Puebla and Santo Domingo respectively. The research is conducted following Bernard Lonergan's Method in Theology, which facilitated the approach to the writings about spirituality in that particular period. The research confirmed that the spirituality that appeared as a basis for Liberation Theology, far from disappearing or losing value due to the strong criticism voiced, was strengthened because of its fundamental theological sources such as the Incarnation of Jesus and Discipleship.