"33 Años" is a song by Julio Iglesias that reflects on the passing of time and the nostalgia that comes with it. The lyrics describe the struggles of aging, the desire to hold onto youth, and the inevitability of change. The song begins by describing the passage of time as days slip by between nostalgia and nostalgia, between life and life, and between darkness and light. Iglesias then reminisces about his own youthful years, particularly when he turned 16. He longs for the ability to turn back time, wishing for a few years of youth and life that he never truly had. However, as the song progresses, Iglesias realizes that time does not slow down for anyone, and it is impossible to reverse the aging process. He remembers the regrets and losses he has experienced, and how they have affected his life. Despite his desire to hold onto the past, he acknowledges that the love and relationships he has had throughout his life have been shaped by his age and experiences. Throughout the song, Iglesias reflects on the fleeting nature of time and the bittersweet memories that come with it, as well as the importance of cherishing every moment. The song's title, "33 Años," refers to the fact that at the time of the song's release, Iglesias had just turned 33.