Anselm, Saint, Archbishop of Canterbury. [Letter to Eulalia, abbess of Shaftesbury, 1094-95] in Sancti Anselmi Cantuariensis Archiepiscopi Opera Omnia 4.67-68

[Letter from Saint Anselm, Archbishop of Canterbury to Eulalia, abbess of Shaftesbury]
Archbishop Anselm sends spiritual advice to the abbess and her nuns and asks for their prayers in the misery of his office, stated quite strongly.
Online at Epistolae (See also Bibliographia record).