In what way does the architecture of the Temple of Heaven in Beijing express the traditional Chinese concept of the universe?

The Temple of Heaven in Beijing is an altar and temple dedicated to the heavens, and its architecture makes extensive use of the symbol of the circle, which is the shape of the heavens, in order to express the traditional philosophical concept of "heaven is round and earth is square". The Temple of Heaven's buildings are mostly covered with dark blue glazed tiles, as well as a wide range of odd numbers (yang numbers), symbolizing the sky for the sun, its blue and odd numbers, but also out of the worship of the sky, showing the traditional Chinese concept of the universe.