Tantum Ergo Sacramentum. 13th-Century Benediction Anthem. Written by Saint Thomas Aquinas.

Monstrance.

Photo: 2004-10-18 (original upload date).

Source: Own work (zelf gemaakt).

Originally from nl.wikipedia; description page is/was here.

Author: Original uploader was Broederhugo at nl.wikipedia.

(Wikimedia Commons)

Tantum Ergo Sacramentum.

13th-Century Benediction Anthem.

Written by Saint Thomas Aquinas.

Available on YouTube at

http://youtu.be/w8fVgqTtPfA