Imagery is a literary device, that in a form of a vivid and descriptive language, appeals to our senses, whether sight, hearing, smell, taste or touch, and creates an impression on us by evoking pictures or ideas in our minds or certain feelings. Here is an example to better picture it "I could hear the popping and crackling as mom dropped the bacon into the frying pan, and soon the salty, greasy smell wafted toward me." Through this line, we can imagine ourselves being in the scene, we can almost smell, see and hear all the scene, this language certainly creates an impression on us.
Read this stanza from walt whitman's poem "i hear america singing":the delicious singing of the mother, or of the young wife at work, or of the girl sewing or washingwhich word best describes the tone in this stanza? HAPPY