Girassol translates to "sunflower". It's a beautiful and evocative word that isn't as common in everyday Portuguese songs, making it stand out.
In the song, the singer mentions bringing a sunflower to his mother to compensate for his empty room. This gesture symbolizes warmth, love, and a desire to brighten her day, making it a poignant and memorable image within the lyrics.
This song is a beautiful, heartfelt letter from a grown-up son to his mother. The singer, from the Portuguese band D.a.M.A, starts by admitting he doesn't say "I love you" nearly as much as she deserves: "Sei que digo que te amo muito menos do que tu mereces" (I know I say I love you much less than you deserve). He lives far from home now, leaving an empty room behind, but he promises to visit, look at old photos, and bring her a sunflower.
He knows she worries constantly, praying for him whenever he travels, and he feels her protection even from a distance, saying "Ando debaixo da tua asa" (I walk under your wing). He sees himself in his own son, a little "pirate" just like he used to be, and taking him to school brings back memories of his own childhood. It's a sweet and honest look at how a parent's love shapes you, even after you've left the nest.