Using Dita map I created output, I used teaser I got the title but I don't get a description.
So how can I get a description from the linked page
Please check if the page has content for the description field by simply following below steps:
Hope it helps
you need to set a description of the page using page properties.
Teaser read jcr:description property of the page to get a description.
aem-core-wcm-components/teaser.js at master · adobe/aem-core-wcm-components · GitHub