Sacramentals are material objects, things or actions (sacramentalia) set apart or blessed by the Roman and Eastern Catholic churches, the Eastern and Oriental Orthodox churches, the Church of the East, the Anglican churches, the Independent and Old Catholic churches, the Lutheran churches, and the Methodist churches to manifest the respect due to the sacraments and so to excite pious thoughts and to increase devotion to the Church.
The Biblical basis for the use of sacramentals is that Jesus Christ used a form of sacramentals Himself; for example, when Christ healed a blind man, He made a mud paste that He put over the eyes of the man, before telling him to wash in the Pool of Siloam.
The Catholic Church currently defines sacramentals as "sacred signs which... signify effects, particularly of a spiritual nature, which are obtained through the intercession of the Church. By them men are disposed to receive the chief effect of the sacraments, and various occasions in life are rendered holy." 
Sacramentals do not confer the grace of the Holy Spirit in the way that the sacraments do, but by the Church’s prayer, they prepare one to receive grace and dispose a person to cooperate with it. "For well-disposed members of the faithful, the liturgy of the sacraments and sacramentals sanctifies almost every event of their lives with the divine grace which flows from the Paschal mystery of the Passion, Death, and Resurrection of Christ. From this source all sacraments and sacramentals draw their power."
Rosary beads, scapulars, medals and religious images are more accurately termed “devotional articles"; non-liturgical prayers such as the rosary, the stations of the cross, litanies, and novenas are called "popular devotions" or "expressions of popular piety".
Pentecostal theologian Mark Pearson states that Sacred Scripture speaks of sacramentals, sometimes referred to as points of contact, such as blessed prayer cloths (Acts 19:11-19:12) and holy oil (James 5:14). He states that God is the source of healing and that Pentecostal clergy "can confidently offer prayer, administer the various sacramentals, and lay hands on the sick".
- O'Neill, Eddie (1 November 2014). "What Are Sacramentals?". Our Sunday Visitor. Retrieved 14 March 2017.
- Armentrout, Don S. (1 January 2000). An Episcopal Dictionary of the Church: A User-Friendly Reference for Episcopalians. Church Publishing, Inc. p. 541. ISBN 9780898697018. Retrieved 9 April 2014.
- Sacrosanctum Concilium 60
- Catechism of the Catholic Church §1670
- Catechism of the Catholic Church §1671
- Catechism §1672.
- Catechism §1673.
- Catechism §1674.
- Code of Canon Law 1170
- Payne, Leanne (1 March 1996). Restoring the Christian Soul: Overcoming Barriers to Completion in Christ through Healing Prayer. Baker Books. p. 277. ISBN 9781441239570.