In "The Queen of the South" by Arturo Pérez-Reverte, the phrase suggests that in matters of love or desire, one can be easily captivated, similar to how sailors are lured by sirens. However, this allure can lead to unexpected and often dangerous consequences, much like encountering a fierce sea wolf instead of a desirable experience.

This quote reflects the complexity of relationships, particularly for women, emphasizing that what initially seems alluring can sometimes turn out to be hazardous. The contrasting imagery of the enchanting siren and the predatory sea wolf encapsulates the unpredictability of passions and the risks involved in pursuing them.