The song "Du In Deiner Welt" by Julio Iglesias is about reminiscing about a past love and holding onto memories. The lyrics describe the beauty of an evening sunset and the whispering of mandarin trees reminding him of a love that never died. The singer is left with only a memory of his lost love and a goodbye song that never fades away. The song speaks to the heartache of letting go of a love that once brought so much happiness. The singer wonders if his former lover ever thinks back to the summer days spent together by the river, listening to the melody of the flowing water. He encourages his former partner to hold onto those memories and not let go of the happiness they once shared. The song also touches on the inevitability of time passing and the notion that it cannot sustain promises made or hold onto what was once cherished. The singer wishes to believe that their love is not completely gone and hopes that it can be rekindled. Overall, "Du In Deiner Welt" is a bittersweet tribute to a love that was lost but never forgotten. It highlights the power of memory and the longing for a once cherished love to return.