Shrines are found in many of the world's religions, including Christianity, Islam, Hinduism, Buddhism, Chinese folk religion, Shinto, and Asatru as well as in secular and non-religious settings such as a war memorial. Shrines can be found in various settings, such as churches, temples, cemeteries, museums, or in the home, although portable shrines are also found in some cultures.
Small household shrines are very common among the Chinese and people from South and Southeast Asia, whether Hindu, Buddhist or Christian. Usually a small lamp and small offerings are kept daily by the shrine. Buddhist household shrines must be on a shelf above the head; Chinese shrines must stand directly on the floor.
Another use of the term "shrine" in colloquial Catholic terminology is a niche or alcove in most – especially larger – churches used by parishioners when praying privately in the church. They were also called Devotional Altars, since they could look like small Side Altars or bye-altars. Shrines were always centered on some image of Christ or a saint – for instance, a statue, painting, mural or mosaic, and may have had a reredos behind them (without a Tabernacle built in).
The line between a temple and a shrine in Taoism is not fully defined; shrines are usually smaller versions of larger Taoist temples or small places in a home where a yin-yang emblem is placed among peaceful settings to encourage meditation and study of Taoist texts and principles. Taoists place less emphasis on formalized attendance but include ritualized worship than other Asian religions; formal temples and structures of worship came about in Taoism mostly in order to prevent losing adherents to Buddhism.