Definition of Metaphor
As Shevek and Takver lie in bed and look at the light of the moon—Urras—they are described metaphorically as being made of moonlight:
Their naked arms and breasts were moonlight. The fine, faint down on Takver’s face made a blurring aureole over her features; her hair and the shadows were black. Shevek touched her silver arm with his silver hand, marveling at the warmth of the touch in that cool light.
After months apart, Shevek's desire to reunite with Takver and Sadik is metaphorically represented as a storm. This metaphorical storm is joined by the literal stormy weather on the night that he returns to Anarres: The city around him is dry and windy enough that the wind fills the streets. Shevek's feelings unite with the wind around him, and both the wind and his own passion propel him forward:
Unlock with LitCharts A+They came into the city late on a windy night of early autumn. It was getting on for midnight; the streets were empty. Wind flowed through them like a turbulent dry river. Over dim street lamps the stars flared with a bright shaken light. The dry storm of autumn and passion carried Shevek through the streets, half running, three miles to the northern quarter, alone in the dark city.