By Luciano Migliaccio
The marble sculpture dated 1885 is conserved at the Metropolitan Museum of New York. Between 1898 and 1919, the Barbédienne studio cast fifty copies of this work in bronze. Apparently, however, the work in the Masp Collection, Eternal Spring, does not belong in this group. Before showing his sculpture at the 1897 Paris Salon, Rodin had named it Zéfiro and la Terre; later he changed this title to Cupidon et Psyché. Given the success attained by this work, Rodin had it reproduced in marble and later cast in bronze at the studio Barbédienne. Both the marble copy and its reproductions in bronze differ from the original kept at Musée Rodin, in that the arm and the leg of the male figure are propped on a rock that serves as an extension of the base.

— Luciano Migliaccio, 1998

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