The act of confining or enclosing oneself or being confined in a cloister; the state of living in seclusion or enclosed spaces.
From Latin claustrum + -ation (process noun suffix). Emerged from medieval monastic practice where individuals underwent voluntary or mandatory enclosure.
Medieval nuns and monks didn't just live in cloisters—they underwent 'claustration,' a formal commitment to enclosed life that shaped Western European society for over a thousand years.
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