On Dhanteras, homes that have not yet been cleaned in preparation for Diwali are thoroughly cleansed and whitewashed, and Lord Dhanvantari, the god of health and Ayurveda, is worshiped in the evening. The main entrance is decorated with colorful lanterns, holiday lights and traditional motifs of Rangoli designs are made to welcome the Goddess of Wealth and Prosperity. To indicate her long-awaited arrival, small footprints are drawn with rice flour and vermilion powder all over the house. On the night of Dhanteras, diyas (lamps) are ritually kept burning all through the night in honor of Lakshmi and Dhanvantari.