Desires are common to all, whether one is young or old, man or woman, a common man or a saint. However, it is very important to have good desires, such as the desire to reach an exalted position, the desire to lead a noble life, the desire to be a good student, or the desire to tread the divine path. It is quite natural for man to have desires as he has to live in the world. But there should be a limit to his desires. As his desires have crossed all limits due to the effect of Kali Yuga, he has lost his peace and is experiencing restlessness. Man's unlimited desires are like chains which bind and imprison him. He loses his freedom as he is bound by desires. Animals also have desires, but they are not limitless like those of man. Animals have a reason and a season, but man has no reason and no season. That is why man today is facing so many troubles and problems. Man has no dearth of food, raiment, and shelter. Then, what is the reason for his restlessness? It is only excessive desires that make him restless. Therefore, he must put a ceiling on his desires. Less luggage, more comfort makes travel a pleasure. Life is a long journey. In this long journey of life, you should not have excess luggage. This, in Vedantic parlance, is called renunciation (vairagya).