Abstract rangoli designs for this diwali

The design of Diwali rangoli is made of colourful rice flour, which, heralds the arrival of Goddess Laxmi into the house. Here I have found some Abstract Rangoli designs:

Is it necessary to celebrate Dhanteras ?

Hindus consider Dhanteras an auspicious day to buy gold. On the eve of the festival of lights, Diwali. New clothes are worn, gifts, traditionally of sweets, are given and prayers are offered to the Hindu goddess of wealth, Lakshmi.
All the rich people buy gold, silver for the occasion . Is it necessary to celebrate Dhanteras in this way when 37.2 per cent of population BPL, 10 crore families to get food security in India ( Report : indian express, Apr 18, 2010 ).
Celebration to buy gold is a shameful act in India.

Diwali in Goa !

Diwali which is the festival of lights, is a one-day festival in Goa. Bhaubija and the New year day are also celebrated as part of Diwali festival. In Goa, huge effigies of Narkasura the demon, are made and burnt at dawn. The night of Diwali is also be jeweled with millions of flickering candles and an explosion of fire works and fire crackers, so it is known as the Festival of Lights. The lamps signify enlightenment or upliftment of the mind and edification of the spirit.

Narak Chaturdasi is called Diwali in Goa. On this day, early morning, a paper made Narkasur (demon) filled with grass, wastepaper, crackers etc is taken out and to the accompaniment of taunts and insults, burnt and cremated. Early on Diwali day after burning the Narkasur the Hindu menfolk will return to their homes to be massaged by their wives / mothers with the same type oil and 'utnem'. The family then visits the local temple and returns to a similar feast of 'foav' sweets.