Lakshmi Pooja, or the worship of the goddess of wealth, is the main event of Hindus.
It is popularly believed that Lakshmi likes cleanliness and will visit the cleanest house first. Hence, the broom is worshiped with offerings of haldi (turmeric) and sindoor (vermilion) on this day. Lamps are lit in the evening to welcome the goddess as they are believed to light up her path.
On this day, a supported light of knowledge is said to dawn upon humanity. This self-enlightenment is expressed through the twinkling lamps that illuminate the abode of the worshippers. It is believed that on this day, the goddess walks through the green fields and loiters through the by-lanes and showers her blessings on mankind for glory and prosperity.
The third day of Diwali is believed to be the most auspicious day; this is when Lakshmi Pooja is performed. With pomp and ceremony, Lakshmi is invited into the homes of devotees to partake of the gifts that are a part of the Pooja.
The most auspicious time for the Pooja is decided when Amavasya Tithi prevails during pradosh kaal or the evening time. On this day, the sun enters its second course and passes the constellation Libra, which is represented by the balance or scale. Hence, the sign of Libra is believed to suggest the balancing and closing of account books.