``This conflict was begun on the time and terms of others. It will end in a way and at an hour of our choosing,'' he said. Although a downpour greeted the earliest comers, the sun broke through the clouds in time for Bush's address. Former presidents Gerald Ford, Jimmy Carter, George H.W. Bush and Bill Clinton surrounded their successor in the front pews. The president, arriving with first lady Laura Bush, appeared to fight tears as he greeted his father with a quick handshake. ``Our unity is a kinship of grief and a steadfast resolve to prevail against out enemies,'' Bush said. ``And this unity against terror is now extended across the world.'' The Rev. Billy Graham, a longtime counselor to American presidents, prayed that the country would ``feel the loving arms of God wrapped around us'' but told Americans it was all right to be angry. ``You may even be angry with God. I want to assure you that God understands these feelings that you have,'' said Graham, 82. ``Yes, our nation has been attacked. ... But now we have a choice whether to implode and disintegrate emotionally and spiritually as a people and a nation, or whether we choose to become stronger through all of the struggle to rebuild on a solid foundation.'' Graham's very appearance spoke to the gravity of the national crisis. He has turned down many recent invitations due to badly failing health. ``Those of us who are gathered here - Muslim, Jew, Christian, Sikh, Buddhist, Hindu - all people of faith want to say to this nation and to the world that love is stronger than hate,'' said Bishop Jane Holmes Dixon, opening the service on what Bush had decreed a national day of prayer and remembrance. Bush, too, spoke in healing tones, praising rescue workers and people who sacrificed their lives to save others in the attacks on the World Trade Center in New York and the Pentagon (news - web sites) outside Washington. ``This nation is peaceful but fierce when stirred to anger,'' Bush said. From the cathedral, Bush was making a grim pilgrimage to New York City ``to thank and hug and cry'' with survivors and rescue workers at Ground Zero, where tons of debris are all that remain of the once-towering World Trade Center. Most congregants, including Bush's mother, pinned a loop of red, white and blue ribbon to their lapels. But for all the hope and solidarity that those ribbons meant to convey, the entire assembly - from the sea of dark suits to the mournful dirges of so many choirs - had the feel of a national funeral. With all of the Cabinet secretaries, Supreme Court justices, congressional leadership and former presidents assembled under one roof, Vice President Cheney did not appear. The Secret Service (news - web sites) had spirited the vice president, first in line to succeed Bush in the event of catastrophe, to the secluded safety of Camp David on Thursday afternoon. The Bush administration provided an Air Force plane so that Clinton and Gore, Bush's rival in last year's bitter campaign, could fly together from New York, where the two had just returned from overseas travel. At a separate Pentagon service, military men and women wiped tears from their cheeks as they sang ``God Bless America.''