It is the nature of a word to reveal what is hidden. The word that is hidden still sparkles in the darkness and whispers in the silence. It entices us to pursue it, to yearn and sigh after it. For it wishes to reveal to us something about God.
To listen to music or to sing a chant is to do something that has no practical purpose; it is just celebration and praise; it is just tasting the joy and beauty of life, the glory of God. Listening to it, even in the midst of a very purposeful day, reminds us to add the other dimension to our experience, the dimension of meaning, that makes it all worthwhile.