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Julian of Norwich
Julian of Norwich was an anchoress living in the 14th Century. She wrote a lot (about the love of God and "love") during her life bricked in to the side of a church.
Revelations of divine love
Contains both the short text, which is mainly an account of the 'showings' themselves and Julian's initial interpretation of their meaning, and the long text, completed some twenty years later, which moves from vision to a daringly speculative theology.