This book has the sub-title "Poema" and it is indeed conceived as a single poem whose various episodes do not have individual titles or numbers. It takes its title from the third "Eclogue" of Garcilaso de la Vega. An ever new "I" eagerly pursues an ever new "you" but there is always something that eludes him. The devices of "conceptismo", such as paradox and conceits, are drawn upon again perhaps in more complex ways than before because he is dealing with abstract concepts such as love. The language, however, remains very simple.