Dreams lead to ancient times? I am really not an ancient Taoist ancestor

In the spring of the year 6823 of the New Calendar, Lu Xuan, a federal gangster from Xiacheng District, hid outside the high school classroom, secretly learned a practice technique, and embarked on the path of spiritual practice.
On the same day, he returned home and had a dream as always. In the dream, he was in the storage room of the Spring and Autumn Period. The current storage history was named Li Er.
Later, Lu Xuan dreamed that he had become the successor of Shou Zangshi, Confucius' second teacher, Zhang Daoling's senior brother, and the First Emperor's sub-father...
Later, someone dug out a scroll of bamboo slips from the ground, which recorded an incident.
[Lu Xuan, the eighteenth governor of Tibet, stabbed Duke Huan of Qi in his palace with sword energy like a waterfall]
The bamboo slips are like this, and more than that.
The ancestors are quarreling, the years are broken, the rituals are broken, the music is ruined, and the heaven and earth are no longer clear!
He existed in the Spring and Autumn Period, he existed in the Immortal Qin Dynasty, and he existed in the creation of the world.
Born in the present, enlightened in the past, yet another word determines the future!
"I have one wish, that the world be pure!"