Deepavali has to be observed as a day for getting rid of all the bad qualities in us, symbolised by the demon Narakasura and the man has to light the Atmajyothi, in him.
There is a scientific reason also for this celebration. With the end of the rainy season water stagnates in many places and the surrounding areas teem with mosquitoes and other insects. The smoke from the crackers and fireworks destroys these insects and disinfects the atmosphere.
On this day, people insist on wearing new clothes. Let your hearts too rejoice, clothed in fresh ideals and feelings and resolutions. Relish these sweets from this day on, and mould your lives into sweet songs of Love.