The song "Love Is Here to Stay" was written by George Gershwin, with lyrics by Ira Gershwin, and it has been performed by various artists including Harry Connick, Jr. The song was originally composed for the 1938 film "The Goldwyn Follies." The lyrics express a deep and lasting love between two individuals. The singer is confident that their love is not temporary but will endure forever. They emphasize that despite the passing trends and fleeting nature of things like radio, telephone, and movies, their love remains constant. The line "Not for a year, forever and a day" signifies the everlasting nature of their love, going beyond a mere year and extending into eternity. They declare that their love is unshakeable and will withstand any challenges that come their way. The references to the Rockies and Gibraltar crumbling or tumbling convey the idea that even natural landmarks known for their strength and permanence are just temporary in comparison to their love. The mention that these structures are "only made of clay" suggests that everything else in the world is fragile and transient compared to their enduring love. Overall, "Love Is Here to Stay" is a declaration of unwavering and everlasting love, which remains steadfast despite the passing of time and changing circumstances.