It's probable that this happened due to the atmospheric phenomenon where the residents of Sichuan, China, witnessed the appearance of what seemed to be seven suns in the sky. If it's due to the optical illusion, such an illusion is known as a sun dog or parhelion that is caused by the refraction of sunlight through ice crystals in the atmosphere. A Sun Dog or Parhelion is an optical phenomenon where sunlight is refracted through ice crystals, creating multiple bright images of the sun. Such displays are uncommon and typically occur in regions with cold temperatures, with ice crystals in the atmosphere. The sight left many in awe and sparked widespread discussion on social media.