Speaker or Narrator, and Point of View
Almost always first person narration, the narrator acts as teacher
Form and Meter
4-8 line stanzas, partly rhymed
Metaphors and Similes
In "To the Christian Reader", the narrator references the "riches of Peru", refering to an unimaginable wealth. The narrator uses this metaphor to describe his depth of conviction that not even these riches could stray him from his path.
In "A Short Discourse on Eternity", the narrator uses multiple objects found both on earth and in Christian mythology to compare them to eternity. This series of metaphors is used to show the extreme difference in time and space between the human realm and heaven.
Alliteration and Assonance
In "Vanity of Vanities", the line "vexing vanities" appears. This usage of an alliteration intensifies the negative meaning and encourages the audience to better themselves.
Irony
In "To the Christian Reader", the narrator laments that his fervor in preaching has caused him harm. Ironically this injury now causes him to be less present and have less options to preach, which caused some discontent within his flock.
Genre
Puritan poetry
Setting
No setting is given, poems often discuss eternity
Tone
Sombre and admonishing
Protagonist and Antagonist
The protagonist is the priest, whose sermon helps the audience reach heaven. The antagonist is human nature.
Major Conflict
Almost all of his poems have the conflict between the sinful nature of humanity and the strive for heavenly eternity as the major plot element. The poems are written in a fashion that reminds readers of a sermon.
The only outlier would be "To The Christian Reader", where the narrator's will to preach is clashing with his physical inability.
Climax
The climax of all of Michael Wigglesworth's poems can be found in the realization that only the proper Puritan lifestyle can help the individual reach heaven.
Foreshadowing
Similarly to the climax, most of the poetry, especially "The Day of Doom" or "Vanity of Vanities" foreshadow the horrible fate that awaits those that do not follow the proper path.
Understatement
The sermon like quality and the severity of the topic do not allow for any form of understatement.
Allusions
Wigglesworth often alludes to specific passages of the bible, for example multiple times in "A Short Discourse on Eternity". These allusions are meant to strengthen his words by showing that they come directly from God.
Metonymy and Synecdoche
In "To the Christian Reader", the narrator uses the word pulpit to refer to the whole profession of priesthood.
Personification
"Vanity of Vanities" personifies the concepts of beauty, pleasure and riches. In all three cases the narrator uses these desirable concepts and calls them out for their shallowness, their ability to easily corrupt the faithful.
Hyperbole
The whole poem "A Short Discourse on Eternity" can be understood as a hyperbole of what eternity is. The narrator uses multiple examples of huge distances and numbers, explaining that all these are nothing compared to eternity.
Onomatopoeia
As a writer of sermons and admonishing poetry, Wigglesworth is not known to use any form of onomatopoeia poetically.