Sirin is a mythological creature of Russian legends, with the head and chest of a beautiful woman and the body of a bird. These half-women half-birds are directly based on the Greek myths. Sirins sang beautiful songs to the saints foretelling future joys. For mortals, however, the birds were dangerous. Men who heard them would forget everything on earth, follow them, and ultimately die. People would attempt to save themselves from Sirins by shooting cannons, ringing bells and making other loud noises to scare the bird off.People in those times believed only really happy people could hear a Sirin, while only very few could see one because she is as fast and difficult to catch as human happiness. She symbolizes eternal joy and heavenly happiness.