Introduction to the preface hall: The preface hall uses a combination of real scenes, paintings, sculptures and multimedia lighting to allow the audience to appreciate the greener Jinggang Mountains. It uses reliefs, oil lamp sculptures, and two movable LED screens to play historical materials. Let the audience feel the red history and highlight the endless charm of "red cradle, green home". The oil lamp uses the lights of the Octagon Tower as the design prototype. Mao Zedong wrote "Why China's Red Regime Can Exist" and "Two Books on the Revolutionary Struggle in Jinggangshan" under the lamp, implying that the road to the Chinese revolution was opened up under the oil lamp. The red light has a long name, and the red "fire" symbolizes the "spark" that can burn down an old world and open up a Chinese revolutionary path that does not follow the path of its predecessors. It echoes the characters "A single spark can start a prairie fire" cast under the lamp.