Senbazuru literally means 1000 orizuru, but it does not have to be exactly 1000. It just means to make many of them as a wish for the speedy recovery of a sick or injured person. Most people in Japan can make orizuru without instruction. We learn how to make them in school as a part of normal school activities (usually in elementary school). When a student gets hospitalized, classmates and teachers get together and make senbazuru for the student.
