Final answer:
Gulliver might feel surprise and adventure upon standing up in his new home, akin to characters in analogous situations experiencing transformation and renewed perception.
Step-by-step explanation:
If Gulliver were to describe his feelings upon first standing up in his new home, we could surmise from the contexts provided that his sentiments might combine surprise with a sense of adventure.
After passing through a mysterious stone doorway into a new land, much like the characters who discover novel surroundings or regain long-lost senses, Gulliver might feel a blend of amazement and a heightened sense of awareness, much like the sensation of seeing the familiar become imbued with new life.
These excerpts convey a universal theme of transformation and the experience of seeing one's world in a new light, either through physical displacement or through newfound freedom or perceptions.