There are various mythological reasons as to why we celebrate Diwali.
The most popular one is the homecoming of Lord Ram to Ayodhya.
It not only include lights and crackers but also certain Hindu rituals.
It is most popularly known as the festival of lights!
4) People worship Goddess Lakshmi on this day who is considered as the goddess of wealth and brings prosperity in our lives.
5) Rangoli decoration is very popular on Diwali which is made with colored powder, flour and sand and considered as very auspicious for the occasion.
6) People decorate their houses with clay lamps and electronic lightings to welcome the arrival of Goddess Lakshmi in their homes.
7) The main day of the festival is celebrated with Lakshmi Pooja followed by mouth watering delicacies and festivities of fireworks.
According to Ramayana, Lord Ram along with his wife Sita and brother Laxman were sent to exile for fourteen years.
On this very day of Diwali, they returned back to Ayodhya after conquering Lanka and killing demon Ravana. This trend was continued year after year and hence people light up their houses on Diwali.