The term imagery is also used in psycholdickogy and everyday discourse to refer to mental images, i.e., the making (or re-creation) of any experience in the mind — auditory, visual, tactile, olfactory, gustatory, kinesthetic. This is a cognitive process employed by most, if not all, humans.
Imagery can refer to any of the five senses: smell (olfactory), touch (tactile), taste (gustatory), hearing (auditory), and, most commonly, sight (visual).
Imagery can be in many forms such as metaphors, similes and puns.
A Simile is a literary device where the writer employs the words "like" or "as" to compare to different ideas.
A Metaphor is similar to a simile, however this literary device makes a comparison without the use of "like" or "as".
Guided imagery is a psychotherapeutic technique in which a facilitator uses descriptive language intended not to psychologically benefit mental imagery, often involving several or all sense modes, in the mind of the listener.