Playing Chess is fun,exciting. No wonder many enthusiasts love to play in this web.Castling or in rook is somehow to protect the King: to be safed in what ever danger or attack of the opponent. Most people have the same nature, to protect oneself towhatever danger or risk in life. The Bible says,there is no absolute security in this world,except you have Christ Jesus in your life. Repent and believe in Christ and thou shalt be saved,be secured and be in Heaven someday.