"hazāroñ ḳhvāhisheñ aisī ki har ḳhvāhish pe dam nikle bahut nikle mire armān lekin phir bhī kam nikle" This is a famous couplet from the poetry of Mirza Galib. That means we have thousands of desires and each desire is so powerful that if we are not able to fulfill the same, we feel like dying. Whatever desires are fulfilled, we always feel that our desires have not been fulfilled. I feel that everybody can relate to this. We have so many desires for almost the rest of our lives. During childhood, we have a desire to play around, have toys, get appreciation from our parents, teachers, get good marks, pass the examinations, win medals, win different competitions and championships, and get admission to good universities, and finally get a good job, and a good life partner. Similarly, adults have thousands of desires such as going abroad, getting increments, a good home, properties, powers, and so many other things. These are the high-level desires during childhood. We ha...