A faith study based on the writings of St. Thomas Aquinas on the Eucharist
and directed by Fr. Hezuk Shroff:
The study starts at around 9 minutes in the above video.
A source of reference for this study is: “Library of the Holy Ghost, Volume 1, The Bread of Life or St. Thomas Aquinas (1225-1274) on the Adorable Sacrament of the Altar – Arranged as Meditation with Prayers and Thanksgiving for Holy Communion” by Fr. Henry Augustin Rawes DD STD (1826-1885):