Final answer:
The Nazi flag features a swastika symbolizing the so-called Aryan race, set on a white circle for purity, on a red background representing social ideas. Hitler revered the pre-World War I German Empire, viewing it as a time of German strength and racial purity to be restored.
Step-by-step explanation:
The Nazi flag is an iconic symbol of the National Socialist German Workers Party (NSDAP) and Adolf Hitler's Third Reich. Central to its design is the swastika, a symbol that originated from ancient Hindu culture, but was repurposed by Hitler to represent the so-called Aryan race and German nationalist pride. The swastika is set on a white circle, symbolizing purity, which is situated in the center of a red background, a color that signifies the social idea of the movement and connects to the historical flag of the German Empire. The black color of the swastika also signifies the struggle for the Aryan man's victory.
When Hitler referred to "those revered colours expressive of our homage to the glorious past," he was romanticizing the period of the German Empire prior to its defeat in World War I, seen by him as a time of German strength and purity, before the so-called corruption by foreign influences and the imposition of the Treaty of Versailles. He revered this past for its perceived racial purity and nationalistic fervor, which he aimed to restore in contemporary Germany. Hitler's emphasis on racial ideology set the foundation for the Nazi belief in German superiority and the persecution of Jews and other minorities deemed as inferior or threats to the 'Aryan' race.