Festivals always bring pomp and cheers to all people. Life without festival is unthinkable and boring also. Because a festival makes people mingle and exchange ideas and experiences. In that process, the stains of strainer relationships and mistrust are removed whilst the seeds of mutualism and coexistence are sown.
Diwali is the only festival of India when everybody, irrespective of the religion or nationality or culture, feels and enjoys the most of happiness. It's the occasion for building and strengthening the bonds of love and friendship among the varied societies and cultures of the country.
Diwali is described to be the celebration of victory of Good over Bad and Lights over Darkness. The Puranas say Lord Rama won a glorious victory over the demon king Ravana of Lanka. After the victory, He came to Ayodhya with his dear brother Laxman and wife Sita. The people of Ayodhya celebrated the victory by lighting candles and lamps. Thus, Lord Ramachandra was congratulated.
Festivals also mark the beginning of a new season or a business. As Diwali is considered the most auspicious day of the year, New business is started and old business is renewed from this day. People wear new clothes, distribute sweets and pleasantries to all while colorful crackers are fired to make the entire sky witness and reflect the gaiety and splendour of the festivity. People make every Diwali a memorable day of their life by bringing in new books, gadgets, apparels, gifts, etc.. and also by gifting the clothes, cash and other items to the less fortunate and poor people.
So Any festival symbolises the spirit of Give and Take of Happiness among ourselves.
In turn, Festivals are meant for Peace and Prosperity to stay, and not to display the wealth of an individual or society or a country.
Remember to celebrate your festival in the above spirit which gives a feeling of sharing goodness and meaning of life itself.