Laxmi is the Goddess of money, prosperity, and good fortune. She is the wife of Lord Vishnu. She is the form of Shakti (Energy, Power). She is portrayed in red sari with gold ornaments. She typically stands or sits on a lotus, and holds a lotus, a symbol of purity, self-realisation, knowledge and liberation. She is Goddess of Dharma, Karma, Artha and Moksha. In India, all women are declared to be embodiments of Laxmi.
In India, not only Hindus but also Buddhist, Jains and Sikhism adore Goddess Laxmi. There are many mythological stories of Goddess Laxmi. One of them is about Samudra Manthan (The Milky Ocean). This epic episode is given in Bhagavata Purana, and also in Mahabharata and in Vishnu Purana. It is said when in the battles of Devas and demons led by Bali and devas were defeated. Devas went for help to Lord Vishnu. And Lord Vishnu asked Devas to treat demons in a diplomatic manner. Devas formed an alliance with demons to jointly churn the ocean for the nectar of immortality and to share it amongst them. The churning of the ocean was a process. Mount Mandara was used as the Churning rod and Vasuki snake became churning rope. The Samudra Manthan process released many things like- poison, Ratnas (gems, treasures), Kamdenu(the wish-granting divine cow), Airavata ( elephants), Uchhaishravas (7 headed horse), Parijat, Sharanga, Chandra, Shankha, Jyestha and finally Goddess Laxmi came out of milky ocean with a kalasha filled with nectar of immortality.
Siddhi Mantras are known as Laxmi Mantra when these mantras are chant with devotion, gives positive energy. These mantras word off all the troubles and gives success in life.
Diwali is the biggest festival of Hindus. All Hindus worship Goddess Laxmi on Diwali. People clean their houses, offices, shops and industries and also decorate it with lights and lamps and make rangoli in front of their premises, to welcome Goddess Laxmi. This festival marks the victory of good over evil. Out of five days of festival on Laxmi pooja day, all family members get together and offer prayers, people worship Goddess Laxmi and recite a special mantra for 108 times to get prosperity:-The mantra is “OM SHRING HRING KLING AING SAUNG OM HRING KA A EE LA HRING HA SA KA HA LA HRING SAKAL HRING SAUNG AING KLING HRING SHRING OM”. This mantra can be recited loudly, whispered or silently, but with concentrated mind. If a person recites this mantra every day for 108 times, and maintains that over a traditional 40 days, starting from the day of Dhanteras, brings greatest benefit. Person has to face East side while chanting mantra. Diwali puja has to be done during pradosh kaal which starts after sunset and remains for 2 and half hours.