at the palace of holyroodhouse in the center of edinburgh, the queen was waiting to greet him. two holders of ancient offices of the same generation and shared christian faith, but separated by 500 years of division between anglican and catholic churches. this is an occasion with many of trappings of a state visit. in her teach of welcome, the queen talked about the importance of people being free to worship. >> your holiness, in recent times, you have said that religions can never become vehicles of hatred, that never by invoking the name of god can evil and hatred be justified. today, in this country, we stand united in that conviction. we hold that freedom to worship is at the core of our tolerant and democratic society. >> in reply, the pope talked about the atheistic extremism in our century and warned about aggressive secularism now. >> united kingdom strives to be a modern society. this challenging enterprise, may it always maintain respectful values. aggressive secularism is no longer valued or tolerated. >> the queen took the pope on a brief, guided tour of holyroodhou