In Japan, a country where people worship all kinds of Gods from nature and other areas, it is also interesting to see all kinds lucky charms popular among Japanese people. When you believe all kinds of Gods, you probably don't have a true belief.
Luck is similar to true love in many people's opinions. You always desire for it but it comes out of its own will, not yours. Thus, there are many myths or ways of men to gain or earn luck via some kind of efforts.
Origami (折り紙, from ori meaning "folding", and kami meaning "paper") is the art of paper folding. Modern origami practitioners generally discourage the use of cuts, glue, or markings on the paper. Origami senbazuru means folding one thousand paper cranes and then string them together to make a wish. The person who made the wish has to finish all one thousand cranes in one year by him or her self. An ancient Japanese legend promises the wish will be granted by the gods seeing human's efforts and strong will in folding all the cranes.
An ancient Japanese legend promises that anyone who folds a thousand origami cranes will be granted a wish by the gods. Some stories believe y happiness and eternal good luck will be granted, instead of just one wish, such as long life or recovery from illness or injury. The crane, similar to dragon and the tortoise, is one of the mystical or holy creatures and is said to live for a thousand years. 1000 cranes, one for each year to represent long living life and heath as well.