The impact gained by the use of domain is to provide specific and precise language in connection to one topic in order to make the text more authoritative. It might establish a formal tone as well. In this case, it might be said that the domain- specific words could be pilot, return, warning lights, trouble , landing gear,.
The entire story is a dream sequence after the main characters eat some berries if I’m not mistaken. The play happening in the summer months make the storyline a complete midsummer nights dream