The song is a mid-tempo electropop power ballad . It uses a mix of "massive synths" and "crushing drums" to create a grandiose sound.

Lyrically, it mirrors the relationship between Anastasia Steele and Christian Grey in Fifty Shades of Grey , contrasting "innocent romantic longing" with a "pain-laced sensuality". Dual Perspectives: Critics often view the song in two ways:

An exploration of "submission and dominance," where the singer is "entranced and seduced" even when it hurts. Global Success and Impact

It is written in the key of A♭ major at a tempo of 95 beats per minute. Goulding’s vocal performance is often described as "soft," "breathy," and "intimate".

The song explores the intense, sometimes painful nature of a deep romantic and physical connection.