The meaning of joined pinkies.
Because the princess was so pretty and wise, Princes came from all over the world to seek her hand. Finally, five princes were left in the final round. In order to choose the best match for her, she gave them a test. She hid he right hand and unfolded one finger. The five princes have to guess which one it was. So that sign came to represent a vow of marriage. The prince and Princess couldn't be happier. But then the Crusades began, and the prince had to go to war. The Prince promised to come back alive, crossing his pinkie with hers. But ten years passed, and the Prince didn't return. She didn't even know if he was still alive. But since the princess was still so pretty, many people came to ask her to re-marry. She kept saying no, believing that he's return, but she couldn't turn them down any longer. So she decided to marry a man who rejoined pinkies with her. One day, a filthy beggar came to the palace. Everyone tied to get ride of him, but the princess called him in, saying everyone deserves a chance. That beggar was her lost prince. The truth was, the prince had been killed on his way home. The soul of the dead must depart after 49 days. That day was the 49th day. In order to keep his promise, the prince returned as a ghost. Finally the princess found the body of the Prince, and died with him.