The first day(November 5, 2018)is known as Dhanteras. "Dhan" means wealth and "teras" refers to the 13th day of a lunar fortnight on the Hindu calendar. This day is dedicated to celebrating prosperity. Goddess Lakshmi is welcomed into the home and gold is purchased. People gather to play cards and gamble. Ayurvedic doctors also honor Dhanvantari, an incarnation of Lord Vishnu who brought Ayurveda to mankind, on this day. There are a number of temples in Kerala and Tamil Nadu dedicated to Dhanvantari and Ayurveda.