As sadhaka-s, let us introduce ourselves to the world of sounds…. शब्दप्रपंच | The cause of the world of things…. अर्थप्रपंच …. is परमेश्वर । In the context of sound, परमेश्वर is शब्दब्रह्मन् । The entire world is said to be born of शब्द … शब्दप्राभव | Evolution is the result of the self movement स्पंदन of Shiva-Shakti. The line of evolution is from the subtle to the gross. There are five stages to the emanation of sound.