Alliteration is the repetition of a word of sound within the same phrase, such as "Ulalume"; Asonance is a vowel coincidence in the termination of two words, such as "it was night in the lonesome october
of my most immemorial year"; the consonance is an unmotivated use of words that are very close for each other, such as " we noted not the dim lake of Auber- (though once we had journeyed down here)"; and the poetic image describes something real through words, such as "these are days when my heart was volcanic", which explains his heart beats too strong.
