La obra representa un pasaje de la vida del monje francés <b><a href="//commons.wikimedia.org/wiki/San_Bernardo_de_Claraval" class="mw-redirect" title="San Bernardo de Claraval">San Bernardo de Claraval</a></b>, que consistió en que el santo recibió en cierta ocasión un chorro de leche que brotó de una estatua de la <a href="//commons.wikimedia.org/wiki/Virgen_Mar%C3%ADa" class="mw-redirect" title="Virgen María">Virgen María</a> con el <a href="//commons.wikimedia.org/wiki/Ni%C3%B1o_Jes%C3%BAs" class="mw-redirect" title="Niño Jesús">Niño Jesús</a>, que se encontraba en un altar frente al santo, al tiempo que un cardenal aparece contemplando la escena con sus manos unidas en actitud orante.
<bdi><a href="https://en.wikipedia.org/wiki/en:Alonso_Cano" class="extiw" title="w:en:Alonso Cano"><span title="spanish painter, architect and sculptor (1601-1667)">Alonso Cano</span></a>
</bdi>
between circa 1645 and circa 1652 <div style="display: none;">date QS:P,+1650-00-00T00:00:00Z/7,P1319,+1645-00-00T00:00:00Z/9,P1326,+1652-00-00T00:00:00Z/9,P1480,Q5727902</div> / between 1645 and 1652 <div style="display: none;">date QS:P,+1650-00-00T00:00:00Z/7,P1319,+1645-00-00T00:00:00Z/9,P1326,+1652-00-00T00:00:00Z/9</div> <a href="https://www.wikidata.org/wiki/Q27750181#P571" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" style="vertical-align: text-top" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20"></a>
<a href="https://en.wikipedia.org/wiki/en:Web_Gallery_of_Art" class="extiw" title="w:en:Web Gallery of Art"><span title="virtual art gallery for European fine art created before 1900">Web Gallery of Art</span></a>:  <a href="http://www.wga.hu/art/c/cano/vision.jpg" rel="nofollow"><img alt="Inkscape.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Inkscape.svg/20px-Inkscape.svg.png" decoding="async" width="20" height="20" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Inkscape.svg/30px-Inkscape.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Inkscape.svg/40px-Inkscape.svg.png 2x" data-file-width="60" data-file-height="60"></a> <a rel="nofollow" class="external text" href="http://www.wga.hu/art/c/cano/vision.jpg">Image</a> <a href="http://www.wga.hu/html/c/cano/vision.html" rel="nofollow"><img alt="Information icon.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Information_icon.svg/20px-Information_icon.svg.png" decoding="async" width="20" height="20" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Information_icon.svg/30px-Information_icon.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Information_icon.svg/40px-Information_icon.svg.png 2x" data-file-width="620" data-file-height="620"></a> <a rel="nofollow" class="external text" href="http://www.wga.hu/html/c/cano/vision.html">Info about artwork</a><div style="display: none;">reference_wga QS:P973,"<a rel="nofollow" class="external free" href="http://www.wga.hu/html/c/cano/vision.html">http://www.wga.hu/html/c/cano/vision.html</a>"</div>