Key lyrics like "heart made of glass, my mind of stone" symbolize fragility and the emotional numbness that often accompanies mental health struggles. Commercial and Critical Reception
Overview
The song was co-written by Eilish, Khalid, and Eilish’s brother, Finneas , who also handled the production. Billie Eilish, Khalid - lovely
The song functions as a duet where Eilish’s "smoky" vocals melt into the instrumentation, while Khalid’s voice provides a textural counterpoint that cuts through the strings. Thematic Meaning Key lyrics like "heart made of glass, my