The rhetorical device which has been used here is Pathos.
Step-by-step explanation:
Rhetorical devices are the devices which are used in the literature. They are used to convince the audiences and to convey the point of the author or the poet. With the use of rhetorical devices or techniques, the author is able to grab the attention of the audience.
There are four rhetorical techniques which are Logos which is used to appeal to logic, pathos used to appeal to emotion, ethos an appeal to ethics and Kairos an appeal to time. Use of these makes the text interesting. The rhetorical technique used here is Pathos.