Answer:
The technique used by the author is the use of a figure of speech, specifically personification.
Step-by-step explanation:
The personification is a literary device that allows the author to provide inanimate objects, animals or anything other than human, human characteristics, or the ability to perform tasks closely related to human beings.
An example of this can be seen in the passage shown in the question above, this, because the author talks to death, as if death had the capacity to hear, which is a capacity related to human beings. In addition, the author of human characteristics is death, saying that people believe that it is powerful and terrible.