Multitasking.
This is a basic technique for using nerve telekinesis detailed in "Thought: The Start". According to it, multitasking is just the beginning. Gradually, as the power of nerve telekinesis grows, the number of things that can be controlled at the same time can grow exponentially.
Tang Qing fantasizes about a scene where he controls countless blades. Could he create a real-life version of the 'Thousand Swords Return to Sect'?
Well, that seems possible.
Therefore,
Tang Qing has been diligently practicing this ability.
The current strength of his nerve telekinesis is somewhat weak and can't be used to deflect powerful attacks. To reach a point where he fears no damage, he suspects he still has a long journey ahead. Even though it's currently weak, Tang Qing has found another small use for weak nerve telekinesis, and that's... as an umbrella, or for dust protection.