Iranian around the world are preparing this to celebrate Nowruz: the Persian new year. Iranian people carry out a thorough cleaning of their houses. The cleaning is called “sweeping the dust”, and represents a wish to put away old things, bid farewell to the old year, and welcome the New Year.The arrival of spring means that the cold season is over and warmth is on the way. But to many countries in the Middle East and Central Asia, especially Iran, there’s more to it than that. For the Iranian people, the arrival of spring is all about a long lasting tradition, a celebration rooted in history, and the glorification of growth and vigor in Mother Nature.