In order to get the edited or developed images out of Lightroom, you need to export the images.
Please refer :
Hope this helps.
In simple terms- you don't!
Lightroom always records your editing showing you your photos as they are developed.
The record of editing is the Catalog. You must be sure to have a Backup of the Catalog and original image Master files from your camera - done regularly!.
Only when you need a special extra 'derivative' photo do you "Export" the image with the edits applied.