So far, we have seen how we can break down our data by using groups, hierarchies, and row-level security. Power BI provides another powerful method of breaking down and analyzing data called drillthrough. Drillthrough is a method that's used for segmenting data as well as navigating a report. Drillthrough allows us to connect pages of reports together. A report page can be created that focuses on a particular data entity, such as a division, location, or employee. Users can then right-click on a data element on one page and drillthrough to a different page while maintaining the original filter context from the first page.