What does it mean to be a "good man?" You know, at somebody's funeral, someone might say, "he was a good man." What do they mean by that?

good person

Explanation:

It means that he was a good person

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.