Listening by contemplating on the source of the ear organ is the recommended practice for this era because only sound can be heard through walls and all around. You can practice all hours of the day; even while you’re asleep or deep in a dream, you can hear sounds, including the sound of silence. The sound of silence is a sound with a source in you who hear. You first notice sounds in movement and stillness, then you realize that the object of sound neither comes into being nor ceases. Instead of listening to the wisdom of others, why not listen to that which listens? Contemplate: who is it that listens? Listen until even listening ceases.