Ears
It is such a strange world. If you are aware, then everywhere miracles are happening. But you don't see miracles because rarely are you aware, very rarely. Most of the time you keep your eyes open; most of the time you don't snore. But that does not mean that you are awake. It simply means that you are pretending to be awake. But deep inside are so many thoughts, so much confusion, so many wild horses, that how can you see anything? How can you hear anything? So although your eyes are open, they don't see. And although your ears are open, they don't hear.
It is a strange phenomenon that God made eyes in a different way from ears. You cannot close your ears; you can close your eyes. You have eyelids to close, to open, but what about your ears? God never bothered to give little earlids, because he knew you are so much involved in the mind, you don't need them. Your ears are always deaf; you don't hear, or you hear only what you want to hear.
-Osho, “The Invitation, #4, Q2“