Reborn: I Explore the Heavenly Dao on a Microscopic Scale

In his previous life, he was born with an eye condition and missed out on his family, friendship, and the woman he loved. Heaven gave him a chance to be reborn, and he thought he could make up for every regret from his past life. But he had no idea that beneath this seemingly ordinary city, a hidden current of cultivation was flowing, the Heavenly Dao was on the verge of collapse, and a great calamity was coming. Reborn, he unexpectedly gained the Eye of the Heavenly Dao's Origin, using microscopic particles to explore the great principles of the world.