It was perhaps because of the inability -- or refusal -- of some Cistercian nuns to enforce cloistering adequately that clerics found it necessary to intervene in the process of reform.
31) The reform mandates proclaimed cloistering as "la premier fondement et la chose plus necessaire saincte reformation" (the most fundamental and necessary component of holy reform) (214).
While enclosure, and the resulting loss of the abbess' and nuns' power, might be an affront to today's sensibilities, the women of Flines seem to have been amenable to cloistering and to the shift in authority it brought.
46) Included in the document were steps taken toward reform of and compliance with a wide range of aspects of convent life: cloistering, economic self-sufficiency, revitalization and expansion of the convent's structures and properties, construction of areas for reading and le arning, repairs to the infirmary, repair and renovation of the kitchens and refectory, restocking the vestry, and commissioning of works of art for the glory of God.
In the panel containing Jeanne's portrait, the walls of the convent separate her and the nuns in the background from the outside world, disengaging them from all social entanglements as required by cloistering.