The fact that our life is but a perception is the core of ancient wisdom - often dismissed and sneered upon by many - but understood in essence by many as well. Everything is easier said than done, of course. Despite knowing the direction, we falter, thus dividing our reality into 'practical' and 'ideal'. The distinction is convenient, for we respect the wisdom but justify our human way of life, thus stuck in karma cycles.
When the music plays, we sing and dance. For those who are deaf, they would think we have gone mad. For those who are blind, they would think we are a bore to not make the most of the melodies. Some hear music when there is none. Some miss the music that's quite obvious.