Final answer:
Gregor seeks to feel safe by hiding under the sofa, reflecting a common literary motif of characters seeking refuge.
Step-by-step explanation:
To feel safe, Gregor likes to hide under the sofa. The act of hiding and seeking safety is a common motif in literature that often signifies a character's desire to find comfort or protection from external anxieties or threats. Throughout different works of fiction, characters have sought sanctuary in various places, from dense undergrowth in a forest to the concealed corners of a room. For example, characters may hide under furniture, in caves, or behind heavy window curtains, much like Pavel Petrovich, as a psychological refuge from their worries or challenging situations. Gregor's choice of hiding place reflects his need for security and comfort during times that are testing and difficult for him.
In the story, the curtain symbolizes a barrier between Gregor and the outside world. It provides him a sense of security and privacy. By hiding under the curtain, Gregor can isolate himself from the disturbing elements of his surroundings.