Written alongside producers Izco and Jkarri, it was released on 1 July 2021 through Elektra Parlophone Records as the third single off her debut mixtape To Hell with It.

[4] On it, PinkPantheress sings in an "airy",[4] "whisper-like" tone about the "intimate details of her life",[3] including being abandoned by her friends and family and looking for somewhere to stay the night.

[5] Cat Zhang of Pitchfork described PinkPantheress as sounding "listless", "misunderstood", and "slightly dazed, tiptoeing gently through reality" on the song.

[5] Vanessa Handy of NPR remarked that, on "Passion", PinkPantheress "rises above her past" and "cross[es] into a new dimension with the complex, futuristic sound she's embraced".

[6][1] Robin Murray of Clash described it as "a drifting slice of imperious alt-pop" with a "patient sense of introversion" on which PinkPantheress "us[es] both inner and outer space to her advantage".