Soyeuses translates to "silky" and is used to describe the texture of the angels' invisible wings in the song.
It's a beautiful and evocative adjective that adds a touch of softness and mystery to the imagery of angels. While not extremely rare, its specific use here to describe invisible wings makes it particularly memorable and unique to the song's theme.
Have you ever met someone so special they seemed like an angel? In her gentle song "Un Ange," which means "An Angel," Carla Bruni explores this very idea. She sings about how these angelic people can appear in our lives at just the right moment, whether on a lucky day or during a difficult time, offering comfort and protection.
The song, however, reveals a very human problem. When we find someone so wonderful, we can't help but want to possess them, to keep them close and never let them go. Bruni warns us to be careful with every new person we meet, because angels look just like everyone else—their wings are invisible. The final, bittersweet warning is to be careful not to fall in love, perhaps because loving something so pure and free can lead to the pain of wanting to hold on too tightly.