Cloistered in the context of "Monastic"

Enclosed religious orders are religious orders whose members strictly separate themselves from the affairs of the external world. The term cloistered is synonymous with enclosed. In the Catholic Church, enclosure is regulated by the code of canon law, either the Latin code or the Oriental code, and also by the constitutions of the specific order. It is practised with a variety of customs according to the nature and charism of the community in question. This separation may involve physical barriers such as walls and grilles (that is, a literal cloister), with entry restricted for other people and certain areas exclusively permitted to the members of the convent. Outsiders may only temporarily enter this area under certain conditions (for example, if they are candidates for the order, doctors or craftsmen). The intended purpose for such enclosure is to prevent distraction from prayer and the religious life and to keep an atmosphere of silence.

Under certain circumstances, exceptions may be granted for enclosed men or women to leave the enclosure temporarily or permanently.

The Poor Clares of Perpetual Adoration (PCPA) are a branch of the Poor Clares, a cloistered, contemplative order of nuns in the Franciscan tradition. Founded in France in 1854 by Marie Claire Bouillevaux, the Poor Clares of Perpetual Adoration are cloistered nuns dedicated to the perpetual adoration of the Blessed Sacrament.