English: "Prayer for All Conditions of Men I" -- a stained glass clerestory window on the north side of the nave at the Washington National Cathedral in Washington, D.C. It is located in the White Bay, which is dedicated to Henry White. White was an American diplomat and peace-maker who served as a delegate to the Versailles Peace Conference at the end of World War I. The theme of the bay is "peace and unit." This window was designed by Marguerite Gaudin, and fabricated by Willet Stained Glass Studios. Note the atom in the lower right corner of the left pane (symbolizing the peaceful uses of nuclear power). It was dedicated in 1957.

A "clerestory" window is one that is high above the floor, and usually is quite narrow. They are designed to allow light into a cathedral.

Originally, the cathedral building committee required that all stained glass in the cathedral be the modestly colored English-style stained glass. Lawrence Saint designed most of the stained glass windows for the chancel, choir, and side chapels. But in the 1950s, financial patron James Sheldon convinced the building committee to abandon that plan in favor of the more vibrant, light-filled style of the French and Spanish cathedrals. This is why the Washington National Cathedral has such vibrant, glowing windows instead of gloomy pastels that let in almost no light.