Blow is a wonderful rendition of the Litany of the Saints. It appears to be a shorter version than the one that appears here, but it is beautifully chanted, and the Latin appears at the bottom of the video so that you can follow along.
If you are not very familiar with Latin, that's ok. Don't worry about trying to translate the words. Just listen to it. Latin chant has the splendid ability to lift your heart up to heaven just by the sound of it, before the mind even begins to comprehend the words. So, just sit back and soak it in.
If you would like to learn more about the saints, I have written extensively on the subject. See the following entries:
I conclude with a prayer in Latin, with slavishly literal English translation:
Omnípotens sempitérne Deus, qui nos ómnium Sanctórum tuórum mérita sub una tribuísti celebritáte venerári: quaesumus; ut desiderátam nobis tuæ propitiatiónis abundántiam, multiplicátis intercessóribus, largiáris.
Almighty, eternal God, Who granted us to honor the merits of all Your Saints in a single solemn festival, bestow on us, we beseech You, through their manifold intercession, that abundance of Your mercy for which we yearn.