idiom · To attempt to bring back or restore ideologies, systems, or ideas that are already dead or outdated.

有些人试图为这种早已被时代淘汰的旧思想扬幡招魂。

To raise a banner as a ritual act to call back the soul of a dying or deceased person.

道士在法事现场扬幡招魂，场面十分肃穆。