The light of the octagonal tower is the dawn, and the light of the octagonal tower illuminates the future of the Chinese revolution. The skylight is the shape of the octagonal, and the oil lamp is used by Chairman Mao to write at night. This is the light of the octagonal tower. Chairman Mao completed two works in the Octagon, namely the fire of the Chinese revolution, and the reason why the Chinese revolution can spark the original theory and reality combined. This is the spirit of Jinggangshan.