Translation of the song lyrics Canto Livre - Nara Leão

Canto Livre (original)

Enquanto espero eu canto
Se desespero eu canto
Enquanto vou eu canto
Na eterna volta eu canto
E no encanto de cantar
Se canto perdida eu canto, canto, canto
La, la, la, la, la, la, la, la
La, la, la, la, la, la, la
Se nao tem sentido o meu cantar
Qual o sentido de nao cantar?
Se na manhã primeira eu nao cantei
Na derradeira eu cantarei
Todas as buscas tem o seu canto
Todos os cantos são encontrados, eu canto, canto
La, la, la, la, la, la, la, la
La, la, la, la, la, la, la
La, la, la, la, la, la, la, la
La, la, la, la, la, la, la

(translation)

While I wait I sing
If desperate I sing
While I go I sing
On the eternal return I sing
And in the enchantment of singing
If I sing lost I sing, sing, sing
La, la, la, la, la, la, la, la, la
La, la, la, la, la, la, la
If my singing doesn't make sense
What is the meaning of not singing?
If on the first morning I didn't sing
In the last I will sing
All searches have their corner
All corners are found, I sing, sing
La, la, la, la, la, la, la, la, la
La, la, la, la, la, la, la
La, la, la, la, la, la, la, la, la
La, la, la, la, la, la, la