Rather than a typical "breakup song" filled with bitterness, "Everglow" is about the warmth and light that remains even after a connection has physically ended. The "Happy Accident" at Glastonbury

The song is widely believed to be about Martin’s relationship with his ex-wife, , following their "conscious uncoupling". Paltrow even has a small, uncredited vocal part in the song, singing the lines: "How come things move on? / How come cars don't slow?" .

The band loved the raw, intimate feel of this solo performance so much that they re-recorded it that way and released it as the single version. Key Themes & Meaning