You by David Guetta is a heartfelt song exploring themes of love, yearning, and connection. Through its poignant lyrics, the song delves into the emotions of wanting to be with someone special and the powerful impact they have on one's life. Key themes include desire, passion, and the emotional highs and lows that come with a deep romantic relationship. A particularly poignant moment in the song is when the lyrics express an intense longing and the feeling of completeness that only the presence of a loved one can provide.