How does the author use symbolism in the short-story collection, Unaccustomed Earth?

One example of symbolism can be found in the pine tree that features into the short story “A Choice of Accommodations.” A pine tree has grown in front of the balcony of the hotel room of the Chadwick Hotel where Amit and Megan are staying. It obstructs their view. The view from the balcony is symbolic of the marriage of Amit and Megan, and the obstructing pine tree represents the problems of daily life –and the past – all of which threaten the marriage, just as the tree threatens the view.