Does the taste of a particular candy bar suddenly whisk you back to an earlier time in your life? That's an evocation, the summoning, usually unconscious, of a memory or emotional state caused by a particular stimulus.

The word invocation is often used interchangeably with evocation, though in fact they have quite different meanings. An invocation is a deliberate — as opposed to accidental or unconscious — summoning of a God or other form of supernatural power for aid. Very different, you'll agree. Unless of course you're trying to invoke the God of candy bars.

Definitions of evocation

n stimulation that calls up (draws forth) a particular class of behaviors

elicitation, induction
Type of:
input, stimulant, stimulation, stimulus
any stimulating information or event; acts to arouse action

n imaginative re-creation

Type of:
imagery, imagination, imaging, mental imagery
the ability to form mental images of things or events

n calling up supposed supernatural forces by spells and incantations

Type of:
conjuration, conjuring, conjury, invocation
calling up a spirit or devil

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