The meaning of a spiritual retreat can be different for different religious communities. Spiritual retreats are an integral part of many Buddhist, Christian and Sufi communities. There are many different types of spiritual retreats such as wellness retreats, mindfulness retreats, spa retreats, adventure retreats, detox retreats, yoga retreats, and religious retreats.

The Spiritual Exercises, composed 1522–1524, are a set of Christian meditations, contemplations, and prayers written by 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 and also for addressing problems facing society in the 21st century.