Many of you will know the American theologist Edward C. Sellner through his books on Celtic saints ( eg Wisdom of the Celtic Saints) and on the anam cara (Celtic Soul Friend). Here is a paper by him that you may find of interest: “Brigit of Kildare, Golden Sparkling Flame: A Study in the Liminality of Women's Spiritual Power”.
Posted on Ohio State University's Monastic Matrix (a scholarly resource for the study of women's religious communities from 400 to 1600 CE), it was first published in Vox Benedictina: A Journal of Translations from Monastic Sources 8/2 (1991): 265-296.
For those who have the original version of Wisdom of the Saints and would like the updated introduction, this is available through Northumbria Community for four pounds. For an online article by Sellner on soul friendship (anam cara) visit the site of Aisling magazine.