Mis on ilmapuu? What is the arbor mundi? This wonderful photo, taken during the song-festival procession only begins to explain the symbol of this summer’s cultural highlight in Estonia, the 10th Youth Song and Dance Festival. How does the ilmapuu represent the world-view not only Estonian, but also common to many peoples, which emphasizes connection and unity with nature? Visit www.laulupidu.ee/ilmapuu-mis_o... for some answers and much more.