What is Daluotian?

The highest realm of Taoism in 36 days is called Great Luo Tian. "Daoism" Volume 7 quotes "Taizhenke": "Rhoda gave birth to Xuanyuan three qi, which turned into Sanqing Day: a clear sky, which was formed by the first qi; Second, Yu Yu spent the rest of his life on the vibrant Qing Dynasty. Third, it is said that the sky is too clear and the atmosphere is mysterious. "