It is not an allegorical reference.
Dutch still-life paintings of the 17th century, with their allegorical references to growth and decay, provide the obvious models for these works.
In some scenes money rains down, an allegorical reference.
In Winter the snake slithering over the rocks could be an allegorical reference to the classical underworld and Pluto.
The name "Shushani," which means "person from Shushan," is most probably an allegorical reference, or possibly a pun.
Not all traditional readings considered that "Guan ju" contained political and allegorical references.
He isn't above using others as his pawns in an allegorical reference to Chess.
Excluding a handful of minor 18th-century satirical and allegorical references, there was no suggestion in this period that anyone else might have written the works.
Figures from history and characters from the Mahabharata can be directly correlated to characters in the book or to more general allegorical references.
However, there are a significant number of feminine allegorical references to the Judaeo-Christian god, most often in some maternal role.