Polachek said that "Door" was the most difficult track on the album to create, saying "I almost gave up on ‘Door’ so many times. I couldn't crack it. It started out as a simple song with just a chorus-verse-chorus. I felt like it needed to transform more. I'd written the structure with Dan Nigro, but I wanted to combine it with the world that ‘Parachute’ and ‘Hey Big Eyes’ exist in. It's more dreamscape. Making the production work was so difficult, the original vibe sat more on an indie rock palette. I was trying so hard to push it into something that felt more magical, and it felt like it was switching palettes too much, or the dynamic was too jumpy, or it didn't have a solid enough core. The production of that song took about a year from start to finish."
