Goddess Laxmi in Diwali Laxmi is the Goddess of wealth and prosperity.  The word Laxmi is derived from the Sanskrit word Laxmi, meaning goal.  She is also called Shri the female of the Supreme Being.
She is worshipped for promotion, success and personal virtues.  Devi Laxmi was emerged during the churning of the celestial milky ocean by the Gods and Demons.  Lakshmi chose Vishnu as Her Consort
Vishnu carried Laxmi from the ocean into His heaven.  Each time Vishnu descends on earth as an avatar.  He is accompanied by an avatar of Lakshmi. She was born as Sita when Vishnu appeared as Rama, she was Rukmini when Vishnu appeared as Krishna and she was the Padma when her husband came as Vamana. Laxmi Puja is performed for prosperity, material abundance, and spiritual prosperity.
She is worshipped to remove troubles that prevent us from starting a spiritual path or business.
 Hindus worship Goddess Laxmi in houses and temples by Her devotees.