Spiritual Exercises of Ignatius of Loyola

The Spiritual Exercises of Ignatius of Loyola (Latin original: Exercitia spiritualia), composed 1522–1524, are a set of Christian meditations, contemplations, and prayers written by Saint Ignatius of Loyola, a 16th-century Spanish priest, theologian, and founder of the Society of Jesus (Jesuits). Divided into four thematic "weeks" of variable length, they are designed to be carried out over a period of 28 to 30 days. They were composed with the intention of helping participants in religious retreats to discern the will of God in their lives, leading to a personal commitment to follow Jesus whatever the cost. Their underlying theology has been found agreeable to other Christian denominations who make use of them.

A review of the publication history of the Spiritual Exercises may be found on the website of Loyola Press. The first printed edition of the Spiritual Exercises was published in Latin in 1548, after being given papal approval by Pope Paul III. However, Ignatius's manuscripts were in Spanish, so this first edition was in fact a translation, although it was made during Ignatius's lifetime and with his approval. Many subsequent editions in Latin and in various other languages were printed early on with widely differing texts.

Archival work on the authentic text of the Spiritual Exercises was undertaken at the initiative of the 19th century Jesuit Superior General Jan Roothaan, who himself published a translation and notes from the original manuscripts of St. Ignatius. The culmination of this work was a "critical edition" of the Exercises published by the Jesuit order in 1919, in the Monumenta Historica Societatis Jesu series. A critical edition from 1847 that incorporates Roothaan's studies can be found online. An authoritative Spanish-Latin text, based on the critical edition, was published in Turin by Marietti, in 1928. This was edited by the editor of the critical edition, and included convenient marginal numbers for every section, which can be found in all contemporary editions (and inline in this article).

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