You can see in the first and second paragraphs how she feels at peace (or rested). Then take a look at the third paragraph and notice how this feeling is starting to inspire her.
I believe the answer you are looking for here is 'inspired'.
In this excerpt, Morris describes the freedom and peace that being free of things gave her. She felt she was emancipated, as there was nothing that required her attention or required care. She was finally able to rest. She then compares her situation to that of her friend and of old monks. This reflection in a vast space makes her feel inspired, and she argues that she will never give up the struggle to reach the ideal of the empty white house by the beach.
