About this song
Glen Hansard and Markéta Irglová wrote and composed the song while the film Once was in production, and director John Carney built the script around songs they had provided. In the film the duo perform it in a Dublin music shop, with Hansard on guitar and Irglová on piano. It won the Academy Award for Best Original Song at the 80th Academy Awards, and versions appeared on two 2006 albums, one by The Frames and one by The Swell Season.
What it's about
The song is presented as coming from a perspective of hope, a theme Irglová highlighted in her Oscar acceptance speech.
Summary written with AI, based on the song's Wikipedia article. Sources: en.wikipedia.org