'The Heart, a censered fire whence fuming chants aspire,
Is fed with oozed gums of precious pain;
And unrest swings denser, denser, the fragrance from that censer
With the heart-strings for its quivering chain.'
(Francis Thompson, The Sere of the Leaf, quoted in Burnt Out Incense by M. Raymond OCSO, PJ Kenedy + Sons, 1949)