A "passionate speech" refers to a talk or presentation where someone speaks with great enthusiasm, strong emotions, and deep conviction about a particular topic. Full definition
The event began by hearing passionate speeches from educators on each topic. (e4e.org)
About nine months ago, at a small park playground a few hundred feet from their children's struggling school, a group of parents chanted, cheered and delivered passionate speeches about their... (hechingerreport.org)
«He was a dedicated legislator and also very proud of his Greek heritage, giving passionate speeches on the Assembly floor about Hellenism and his journey to America as a Greek immigrant.» (brooklyneagle.com)