In the sixteenth century, there was a change in the way people practised the devotion of the "Sacred Heart of Jesus". The devotion started to be part of Christian Asceticism and stopped being part of Christian Mysticism. In the sixteenth century, the devotion also started to use special written prayers and exercises. For example, the devotion used the writings of Lanspergius (d. 1539) of the Carthusians of Cologne and of Louis of Blois (Blosius; 1566), who was a Benedictine and Abbot of Liessies in Hainaut. The devotion also used or followed the writing of John of Avila (d. 1569) and St. Francis de Sales, who lived in the 17th century.