 Retreats became an important element of the monastic work.Brethren did retreats in many parts of the country, and, as a part of the continuous extension of the site in Mirfield, a retreat house was built in 1914 and extended to its present size in 1926.As Anglican Catholics, the brethren laid great store by the beauty of the liturgy, and Walter Frere, a fine musician, was particularly interested in developing the liturgy.