A more ostensible example is Gatsby’s relationship to the green light on Daisy’s property.
A more ostensible example is Gatsby’s relationship to the green light on Daisy’s property. He reaches out to the green light but can never hold it, much like he reaches out to Daisy but can never hold her. You may note that this is also an example of symbolism, and indeed, foreshadowing can coincide with many other literary devices.