Mind is simply a combination of all the thoughts, of all the clouds. Mind has no independent nature of its own. When all the thoughts are gone and the sky is clean and clear, you will see that everything that you have paid so much attention to is nothing but emptiness. Your thoughts were all empty. They contained nothing, they were void. Whatever you thought they contained was your own energy. You have withdrawn your energy — just the empty shell of the thought falls down. You have withdrawn your identity and immediately the thought is no longer alive. It was your identity that was giving it life force. And strangely enough, you thought that your thoughts were very strong and it was difficult to get rid of them! You were making them strong, you were cultivating them. Just by forcing them, you were getting into a fix.