No track is on the sunny sky. F. W. Faber. [Whitsuntide.] Appeared in his Jesus and Mary, &c, 1849, in 18 stanzas of 4 lines, on "The Mission of the Holy Ghost." From it three centos have come into common use: (1) "No track is on the sunny sky; " (2) "The Mother prays her mighty prayer;" and (3) "The Mother sits all worshipful." In these various forms its use is somewhat extensive.
--John Julian, Dictionary of Hymnology (1907)