Final answer:
Keller is pleasantly surprised to find the building so enchanting or well-preserved, as implied by the detailed descriptions provided. The character's surprise could stem from the building's charm, the impact of the environment, or an unexpected sense of connection felt with the place.
Step-by-step explanation:
The context provided suggests that Keller is experiencing a significant change in her perceptions, which implies a degree of transformation happening within the narrative. The references to architecture and place play a role in this transformation, as buildings and their upkeep feature prominently in the layered descriptions of the environment. Considering the highlighted descriptions of buildings and their surroundings, it seems that Keller is pleasantly surprised to find the building so well-preserved, enchanting, or perhaps unexpectedly delightful. This reaction could be based on the charm and peculiarities of the architectural style, the environment, or an intangible essence captured by the place. Each piece of descriptive text emphasizes the observations of the surroundings and ties them to emotions, thoughts, or events occurring to the characters. Most notably, the sense of awakening and connection to a place is evident, which brings forth the discoveries of the narrative's characters in their settings.