Topics Summary is an auto-generated short paragraph about your site.
In the Dashboard →Appearance →Widgets →Sidebar select the Log Lolla Pro Topics Summary widget and define how many categories and tags to use when generating the Topics Summary.
Then a description will be generated by merging the most popular category and tag descriptions.
As your knowledge base / points of interest are changing so this Topic Summary is changing automatically. If a category or tag exits the most popular status another one comes in and the description is updated.