There is theory about the Arthur kingdom that says you can get eternal life if you find the holy grail and the history said : It was said that the key to finding the grail depended on the character of the person who sought it. Only a very special knight could sit on the empty seat of the round table. The dangerous room or dangerous seat was the empty seat at the round table. In ancient histories, it is a reserved seat for "the one who is to come" to be destined the chosen knight of the grail. The vacant seat, therefore, is a seat that no one can occupy except "the chosen one", and anyone who tries it is swallowed by the earth or consumed by the flames. Galahad was the knight chosen by the grail. For many years the seat remained empty. Then