“Common sense carries fragments of knowledge. It knows that the people who are compassionate, people of heart, have a certain wisdom which is not knowledge, a certain insight, a certain intuitiveness which cannot be taught. They can see things, feel things. They are sensitive to things which are not available to the mind. So people start thinking that there are possibilities of the heart having wisdom.
But they don’t know that the heart is your emptiness. And out of your emptiness a clarity, a transparency arises which can see things which you cannot intellectually infer. This is wisdom.
To make it complete, it has to be said, ‘the wisdom of the empty heart.’ The heart, as the physiologist knows it, is just a blood-pumping system. Out of your heartbeats no wisdom can arise. Have you ever felt any wisdom arising from your heartbeats? Has any doctor ever heard some wisdom while checking your heartbeats through his stethoscope? This heart is not the one we mean when we are talking about the emptiness of the heart.
Actually, we are talking about throwing away all the contents of the mind. Then, the no-mind itself becomes your heart. It is not a physiological thing. It is your no-mind – no prejudice, no knowledge, no content. Just purity, simple silence, and the no-mind can be called the empty heart. It is only a question of expression. What you want to choose, you can choose: the wisdom of the empty heart, or the wisdom of no-mind – they are equivalent.
When you are in deep meditation, you feel a great serenity, a joy that is 
unknown to you, a watchfulness that is a new guest. Soon this watchfulness will become the host. The day the watchfulness becomes the host, it remains twenty-four hours with you. And out of this watchfulness, whatever you do has a wisdom in it. Whatever you do shows a clarity, a purity, a spontaneity, a grace.”
Osho, The Buddha: The Emptiness of the Heart, Talk #2
