At the age of 80, she's 'riding a/the wave of' renewed interest in her work. [=she's experiencing a time when many people are interested in her work again]
The traffic cop 'waved' cars 'through'. [=waved in a way that told drivers to continue driving through a particular area]
The new school has triggered a 'wave' of optimism [=has made many people feel optimistic] about the public school system.
(..) May Euron, your servant, be born again from the sea as you were. Bless him with salt. Bless him with stone. Listen to the waves. Listen to the god. we shall have no king but Euron Greyjoy. Let the sea wash your follies and your vanities away. (..)2016 TvShow: Game of Thrones Title: The Door Season: 6 Episode 5