when optimising a website for search, what impact do meta and title tags have on the search engine?

In the digital era, where every business vies for online visibility, the art and science of search engine optimization (SEO) have become paramount. Among the myriad of strategies employed to enhance website visibility, the significance of meta and title tags often stands out. But why are these seemingly small elements so crucial in the grand scheme of SEO? Let’s delve deep into the when optimising a website for search, what impact do meta and title tags have on the search engine?