On the EP, Molly Burman said: “Worlds Within Worlds is a deeper look into me and the stories that have made me the woman that I am today. The songs on this EP explore my sexuality, mental health, breakups and an overwhelming amount of emotions. The name comes from the idea that everyone has their own world that revolves around them, there are millions of worlds on this planet. Each song on this EP is its own little planet in the universe of MollyLand.”

Worlds Within Worlds is her second EP since the 2021 release Fool Me With Flattery.