Hi
Please find below the section from the documentation:-
Reference
The Reference component lets you reference text from another page of your AEM website (within the current instance). The content of the referenced paragraph then appears as if it was on the current page. The content will be updated when the source paragraph changes (might need a page refresh).
- Reference
Specify the path to the page and paragraph that you want to reference (include content).
To specify the path to a paragraph you need to suffix the path (to the page) with:
.../jcr:content/par/<paragraph-ID>
For example:
/content/geometrixx-outdoors/en/equipment/biking/jcr:content/par/banner
As well as referencing a specific paragraph, the path can also be modified to specify an entire par-system. You can do this by suffixing the path with:
/jcr:content/par
For example:
/content/geometrixx-outdoors/en/equipment/biking/cajamara/jcr:content/par
Link:- https://docs.adobe.com/docs/en/aem/6-0/author/page-authoring/default-components/editmode.html (Reference heading)
Some More information below (not what you have asked)
Reference component displays contents of the external paragraph system (ie. parsys from a different page). Its browse dialog consists of page tree on the left and tiles presenting paragraph systems belonging to the selected page on the right.
Link:- http://stackoverflow.com/questions/20999631/why-does-paragraph-reference-component-show-empty-tiles-...
I hope this would help you.
Thanks and Regards
Kautuk Sahni
Kautuk Sahni