Espelho literally translates to "mirror." While a common word, its use in this song is beautifully poetic and unique.
In the lyrics, the singer describes a magical place where "as flores são espelho de quem eu sou," which means "the flowers are a mirror of who I am." He uses this image to say that his surroundings perfectly reflect the beauty and love he feels inside, making this a deeply romantic and memorable line.
This song by Calema, who are from São Tomé and Príncipe and Portugal, is just a huge, beautiful love letter. It's all about finally getting to be with the person you love and shouting it from the rooftops. The singer wants to tell his partner, either by screaming or whispering, "agora é a nossa vez" [now it's our turn]. He's not holding back at all, promising to take them to a place "Onde o ar cheira flores" [where the air smells of flowers] and making them see that the heaven they've been looking for has been right there all along.
This isn't a fleeting romance; it's about forever. The singer makes some intense promises, like wanting to "marcar no meu corpo a frase mais bela que existe de amor" [mark on my body the most beautiful phrase of love that exists]. He wants to prove that this incredible feeling is real, promising that when he touches them, they'll see "Que este sonho é real" [That this dream is real]. The song ends with a simple, repeated plea to stay by their side and "nunca mais fugir" [never run away again], making it clear this is a love he plans on keeping.