Long ago, the gods and the asuras churned the great ocean, using Mount Mandara as the churning stick and the serpent Vasuki as the rope.
Lord Vishnu, as a turtle, held the mountain up.
Out of the ocean rose Dhanvantari, carrying a pot of amrit, the nectar of long life.
That is why families buy something new and shiny on Dhanteras.
Talk about it: Who is pulling the serpent on each side? Can you find the turtle?