Francis of Assisi, the famous merchant's son and later founder of a religious order, has served as a source of inspiration from the most varied perspectives, and Damijan Mocnik has added to this tradition.

The Slovenian composer and choral director composed a cantata in 2013 on the 25th anniversary of the Diocesan Grammar School in Ljubljana, based on the text of the famous Canticle of the Sun, and building on this, a complete setting of the ordinary of the mass as well (2014-16).