Kanakadara strotram story:- Once Adi sankara went for begging for food as he was a sanyasi.He went to house of an old woman.The woman was very poor and had nothing to offer.She had only small quantity of rice for herself which she gave to adi sankara.Pleased with this, he sang the kanakadhara stotram(kanaka-gold.dhara-rain) After hearing this, Goddess Lakshmi is supposed to have rained gold coins on the old woman.