How did Giovanni Pierluigi da Palestrina use madrigalisms in his Song of Solomon motets?

In his 29 motets based on texts from the Song of Solomon, Giovanni Pierluigi da Palestrina utilized "madrigalisms" to enhance the expressive quality of the music.1

These madrigalisms are defined as suggestive musical phrases designed to evoke picturesque features within the text, which are perceptible to either the ear or the eye—and sometimes to both. By incorporating these techniques, Palestrina moved beyond purely abstract polyphony to create musical imagery that directly reflected the poetic and vivid nature of the biblical verses.1