Sheeran explained during a Spotify track-by-track that the song was written after an experience taking ecstasy in Ibiza, and it's basically about all the feelings that he got from that time. "It was weird," he said, "because I haven't taken it since, it was literally just a one-time thing."
"It was a wedding, and I was having a mojito, and my mate was like, 'Do you want to try it, it tastes really bad if you put it in your mouth but I'll just put it in your drink and it'll be fine'. It was MDMA and I fell in love with a beanbag," Sheeran added. "I literally got home and bought six beanbags! During it all I felt a lot of things: I felt anxiety, I felt love, I felt warm, I felt a bit weird. And afterwards, you spend all day just thinking about what you've been through. So, I've only done it once and I've told my mum and dad about it."