Answer:
After winning a prize in a speaking contest, Zitkala-Sa feels a moment of triumph, but this is followed by feelings of isolation and  loneliness, as though she is still an outsider in the world of white people
Explanation:
When we are happy about something, we want to share the happiness with other people. The value of happiness is reduced if we have nobody to share are happiness with.
Zitkala-Sa was present in a different country where she won a prize in the speaking contest. Although she was happy about winning but felt lonely as she missed her people at that time.
