The sound of one hand clapping is the gestures which we create, surrounding us when nobody is making a sound. What you hear when one hand is clapping is nothing, complete silence. You can only feel it.
The sound of a smile when someone is happy, or a frown when someone is sad or confused. The sound of you biting your lip when stressed, or when trotting away when furious. The sound a baby makes when he/she is sleeping. The sound of a hug from a loved one which tells you they love you. The sound of a mother tucking her child into bed. The sound of an old lady and man still holding hands like they have never been more in love. These sounds all around us, that we cannot hear, are some kind of emotion we all express without actually saying anything.
These ‘sounds’ can’t be described through words. Actions speak louder than words.