Initiation and mystagogy in Thomas Aquinas scriptural, systematic, sacramental and moral, and pastoral perspectives : a collection of studies presented at the Sixth Conference of the Thomas Instituut te Utrecht (Tilburg University), December 13-15, 2018 - Schoot, Henk J. M. 1958-; Verburgt, Jacco; Vijgen, Jörgen 1974- (Peeters, 2019)