 Dunstan , now Abbot of Glastonbury , went to work at once on the task of reform . He had to re @-@ create monastic life and to rebuild the abbey . He began by establishing Benedictine monasticism at Glastonbury . The Rule of St. Benedict was the basis of his restoration according to the author of ' Edgar 's Establishment of the Monasteries ' ( written in the 960s or 970s ) and according to Dunstan 's first biographer , who had been a member of the community at Glastonbury . Their statements are also in accordance with the nature of his first measures as abbot , with the significance of his first buildings , and with the Benedictine leanings of his most prominent disciples . 
