Origami is a traditional Japanese papercraft. A square piece of paper is folded into various shapes. One of the most popular origami is cranes.
One thousand origami cranes strung together on strings are called senbazuru. Cranes are a symbol of longevity and good luck. Therefore, it is believed that if you fold one thousand origami cranes, your wish will come true. They are also made for others as a prayer for their recovery from illness.