The heart moon fox, one of the twenty-eight stars in Chinese mythology, is the heart star, the fifth star in the east. It is a fox and the heart is fire. It originated from the natural worship of the stars by the ancient people. It is the first month of summer. The constellations of time, often used in conjunction with the lodgings, are used to discuss "the central dominance of the four directions." It is a product of the combination of ancient mythology and astronomy.