This template adds a section note pointing readers to the main page for a topic.
Normally you would use it in a section - right after the section header - to link to a page that covers the same topic of the section, but in much greater detail. It tells the reader that the linked page is the main page for that topic, implying that the section the note appears in is just a summary. (This is the opposite of the {{see also}} template, which tells readers that the linked page just has some additional, related information, but the current page/section is the main page for the topic.)
Usage
{{main|<page name>}}
Where "<page name>" is the name of the page you want to link to.
For example:
{{main|Blazing Umbra Station}}
Produces:
You can change the link text using the optional "l1" parameter. (That's a lowercase 'L' and a number '1'.) For example:
{{main|Blazing Umbra Station|l1=About the station}}
Produces: