For the authors of the new book All Things Shining —
See the discussions of "concrete universals" in James Hillman's Re-Visioning Psychology and in Donald Phillip Verene's Vico and Joyce —
The index to All Things Shining contains no entries for Hillman (or his mentor Jung), Verene, Joyce, Vico, or the word "universal."
It does, however, contain four references to an example of a universal —
whiteness, 161, 169-173, 175, 178
See also "whiteness" in this journal.