If we think more about the desire for happiness, we see that although every soul seeks after pleasure, or wealth, or position, or power to become happy, he finds that everything in life is changeable. Whatever pleasure, or success, or achievement he gains, are all forms of desire for happiness, and these can only be held like air. How long can one hold that? Is it not always slipping from one's hands, be it wealth or position? The most difficult thing in life is to hold it when one has it. It is true it is difficult to acquire, but how much more difficult to keep! Thousands of people are after it. "How can we get it from him?" they ask. Relatives, friends, enemies, thieves, everybody is contemplating his wealth; while he holds it tight, more and more worried about it every day. So on the one side there is the happiness of holding something which is not his own, and on the other the strain of keeping safe that which does not really belong to him, and which is changeable and temporary. This takes away his happiness.