 Tradition mandates the purchase of one okiagari-koboshi for each member of the family plus one extra in the hope that the family will grow over the coming year.One kind of Daruma doll works on the same principle as okiagari-kobōshi and is sometimes referred to by that name; whenever it is thrown down, it rights itself.This depiction of the Buddhist monk Bodhidharma likely arose in connection with a legend that says that he once meditated for nine years, which caused his legs to either atrophy or fall off.