… the huge twelve foot radongs form the basis and the starting point of the orchestral music. They are always in pairs and are alternately blown in such a way that the sounds of the one merge into the other without breaking its continuity and at the same time producing the effects of gradually swelling and ebbing tides of an ocean of sound. And on the surface of this ocean, the breeze of individual life creates and plays with a multitude of waves and wavelets which, like the high pitched tremolo of the oboes, add vivacity and melody to the vastness of the ocean, whose sound seems to be that of the all embracing OM, the prototype of all mantric sounds.
[Lama Anagorika Govinda: The way of the white clouds (part1. Ch7)]