Hazrat Mirza Tahir Ahmad (1928 - 2003), the fourth Caliph of the Ahmadiyya Muslim Community was in every sense a very great man -- A man whose greatness was not confined to the good he was able to do during his life but the good that has continued since. It was Sir Christopher Wren who had his epitaph inscribed in St Paul's Cathedral which read 'If you seek my monument look around you'. The same can be said of Hazrat Mirza Tahir Ahmad -- Only his monument does not lie in so much as bricks and mortar but in the rich legacy he has left behind in the form of his glowing achievements. These will continue to serve as a living testament to his passion for preaching compassion for others and for the promotion of good for generations to come. His philosophical and religious work during the last 2 decades of the previous century dispelled darkness and filled the age with the light of Divine wisdom which radiated from him. His brilliance was not confined to that century alone. It is to remain outstanding work of unique greatness for centuries to come.