What is the gist of the story "The Postmaster"?

Tagore wrote a very interesting and thought-provoking story. He incorporated several socially relevant themes, but he put his main focus on loneliness, guilt, human nature, and people's never-ending quest for happiness. The postmaster is described as a lonely man who wants to find someone to spend his life with. However, he fails to realize that he already has that person: Ratan. The postmaster continuously sees Ratan as someone who's only there to run different errands for him, and he never truly appreciates her; he's seldom grateful and he doesn't see her as someone who can become his wife. Meanwhile, Ratan cares deeply about him and maybe even loves him.
In the end, the postmaster tries to "win her back," but Tagore alludes to the fact that he might be only doing this out of guilt and not out of love.This is, basically, the gist of the story: people rarely appreciate what's right in front of them and often choose to live their lives blindly pursuing something that is already there. Thus, they unknowingly sacrifice their own happiness in order to find something or someone that they think will make them happy when, in reality, they fail to realize that they already are happy. All they need to do is just open their eyes, their minds, and most importantly, their hearts.