The poetic substance of the four movements which constitute the work in its exclusively instrumental form may be briefly indicated as follows:
I. PSYCHE'S SLEEP
"In the dim regions of her dreams, her spirit becomes aware of some perfect bliss, not of this world, which she feels will yet be hers."
II. PSYCHE BORNE AWAY BY THE ZEPHYRS
There is first a suggestion of the zephyrs; then follows a portion which is said to characterize Psyche herself. A reminiscence of the theme which, in the first movement, served as a love motive, follows; then, again, we hear the Psyche theme.
III. THE GARDENS OF CUPID
This movement is a love scene, "a depiction of the delights of Psyche in the company of her invisible lover."
IV. PSYCHE AND CUPID
The final bliss of the lovers is said to be portrayed here. "Love, at first hesitant, grows bold; it has its passionate flights, its returns to calmness, its torrents of passion, then its moments of ecstasy. The themes are so blended or enchained that they are nearly all of like importance, and often one is the conclusion of the other. They are charged with a penetrating solemnity which touches the heart-core."
"Eros and Psyche," writes Gustave Derepas in an examination of the work of Franck in its original form, "do not appear as individuals. The orchestra interprets their feelings, and for this reason: the two are in this poem not individuals. Franck, forgetting the legendary personages, looks on them as symbols of the human soul and supreme love. Music, absolute music without words, because its notes do not have a definite meaning, is of all the forms of art the most adequate expression of these immaterial realities. There are no solos in this oratorio. The orchestra has the most important part; it translates the longings, the regrets, the final joy of Psyche.... It is to be easily seen that the whole work is charged with the spirit of Christian mysticism."