Small children will laugh without any reason. They express their happiness on their own, without the help of any joke or funny event. Then question comes why we so called intelligent young/elder people need a joke/funny thing to laugh? Because we are conditioned to an artificial atmosphere, boredom, mechanical life cycle, ego, expectations from others, etc. when we grow older we forget our original nature of  happiness and bliss.

Swamiji says there is a difference between happiness and bliss. Sorrow is opposite of happiness, but there is no opposite of 'Anand' Bliss.

The purpose of Param Anand Yoga is to attain the Supreme Bliss with the help of techniques guided by Swamiji. With help of special Yoga Postures and techniques, Pranayam and Meditation person will attain bliss. Within one & half hour practitioner will go beyond boundaries of mind, body and senses.