This is a song about being your own worst enemy, and Marc Segui, a Spanish singer-songwriter, makes it sound gentle instead of gloomy. The chorus opens with a lovely odd wish: "Sueño con averiguar de qué color es el aire" (I dream of finding out what colour the air is). Then he looks for "una nube en el cielo a la que pueda agarrarme" (a cloud in the sky I can hold onto), which is about the least solid thing you could grab.
The best line twists a famous Spanish saying. "Cuando una puerta se cierra, una ventana se abre" (when a door closes, a window opens) is pure optimism, but he adds "pero siempre la vuelvo a cerrar" (but I always close it again). That is the whole song in two lines: the chance is there, and he shuts it himself.
The verses are full of self-mockery. He calls himself "un especialista en acabar con to'" (a specialist in wrecking everything) and "un equilibrista desequilibrao'" (an unbalanced tightrope walker). Notice the dropped letters: to' is todo and desequilibrao' is desequilibrado, the way people really talk in Spain. He also plays with words: "lo de estar bien no es mi fuerte" (being okay is not my strong point) uses fuerte for both "loud" and "strong point". Later come "lágrimas de cocodrilo" (crocodile tears) and "no espabilo", from espabilar, a very Spanish verb for waking up and getting your act together. He admits he does not even want to. Sad, yes, but sung with a smile.