Very beautiful artwork they chose for their . The lyrics are very poetic and relevant:

    "No semblance of the Church remains."
    "His truths are posed as crimes of hate."
    "When His commandments no one will teach, His blood cannot His members reach." (Wow, this is a solid teaching! Essentially: If we do not follow natural law, of which the Decalogue is a summary, His grace cannot perfect us.)
    "Extinguished from the blindness of sin and the betrayals from within." (e.g., Modernism)
    "O will He find faith on earth apart from you who gave Him birth? … Alone in you the faith lives on."

God bless these nuns whom the FSSP assists; they're among the most orthodox in the U.S.
(They quote Pascal at the beginning of the video, too, and their website quotes Bl. Columba Marmion. ☺)