According to a Chilean legend, the ancient Andean Cultures used the rainsticks to pray and call the rain after the sowing time. This would ensure a good seed germination. They are made from a large whole tube of cactus wood from the IV Region of Chile, La Serena.  People who care herds in the mountains, collect only the dry arms of the cactus plants, which have died naturally.  The rainstick is used as a percussion instrument and also to relax the mind and body.