Cantica Sacra: An Aid To Devotion (1865) is a religious book written by Thomas William Silloway. The book is designed to be a guide for individuals who are seeking to deepen their spiritual lives through prayer and devotion. It is a collection of hymns, psalms, and prayers that are intended to be used in private or public worship. The book is divided into sections, each of which focuses on a different aspect of spiritual life, such as praise, thanksgiving,...