I wonder what 'Anahata Nad' actually sounds like..
The reason I ask is that sometimes, when I'm reading a text that seems particularly 'charged', I've mentally 'heard' / imagined an overtone which I could only describe as.... like a finger on glass? A glass harp. Or like a pure analog sine-wave synth.
It is interesting to think that "The sound of one hand clapping" might be not a 'thought-stopping nonsense phrase' but a literal thing with a psychological referent.