if 7 s in haft-sin were a lady

What is the superstition for Persian New Year?
Here are a few examples:
  • Haft-Seen Table: It is believed that setting up a Haft-Seen table, which includes seven items that start with the Persian letter "sin," brings good luck for the new year. ...
  • New Clothes: Wearing new clothes on the first day of Nowruz is believed to bring prosperity and good luck for the new year.