Deleting a post in PRSS does not destroy it. It goes to the site's Trash bin, where you can look at it and put it back.
Find it
Open the Trash bin from your site's dashboard. Sort by title, type or the date it was deleted — dates default to newest first, so whatever you just removed is at the top.
Check it is the right one
Preview a trashed item to see its stored content in place, without restoring it first. Handy when three drafts share a similar title.
Restore it
Restore from the preview or from the list. The post returns with its content, slug and settings intact.
Emptying the bin is the only irreversible step. Until then, nothing you deleted is actually gone.