optical-illusion
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A mirage
An optical illusion, often seen in deserts, where distant objects appear displaced or reflected, or a pool of water seems to exist where there is none, symbolizing something desired but unattainable or unreal.
The meaning and origin of interesting English phrases
An optical illusion, often seen in deserts, where distant objects appear displaced or reflected, or a pool of water seems to exist where there is none, symbolizing something desired but unattainable or unreal.