Like all Catholic spirituality, the spirituality practiced by the Jesuits, called Ignatian spirituality, is based on the Catholic faith and the gospels. Aside from the "Constitutions," "The Letters," and "Autobiography," Ignatian spirituality draws most specially from St. Ignatius' "Spiritual Exercises," whose purpose is "to conquer oneself and to regulate one's life in such a way that no decision is made under the influence of any inordinate attachment." In other words, the Exercises are intended, in Ignatius' view, to give the exercitant (the person undertaking them) a greater degree of freedom from his or her own likes, dislikes, comforts, wants, needs, drives, appetites and passions that they may choose based solely on what they discern God's will is for them.