The symbol and line of movement for Ileo represent oneness of mind and body and harmoniousness between material and spiritual. For taekwondo practitioners, it is meant to represent oneness of mind and body achieved through a long time of training. Performing this poomsae requires concentration and the discipline of careful attention to each movement, letting go of outside thoughts. Ileo is for the 9th dan.
The music for this poomsae was written less about the idea of oneness and more according to the movements, which vary often in speed and intensity. The beginning (joonbee) is a series of gongs, which sound like a call to meditation, but after that it is all about moving between fast vs. slow sections without too much abruptness. Near the end the jump sidekicks serve as a natural high point of the piece, and the music reflects that. The Ileo music is 1 minute, 7 seconds, and is played at 115 bpm