The reason he can do this is firstly due to the authority from the Star Monarch Taoist Lord. After the Cosmic Realm's Star Tao Law's enhancement, Chen Zhixing can truly be considered a master in the Star Tao.
On the other hand, by using Instantaneous Creation and embodying his thoughts as the foundation, he has amplified the control over this law hundreds of times.
Lastly, it is the most fundamental.
Chen Zhixing is of the Chaos Body!
He wraps the starlight power guided by chaotic qi, preventing it from dissipating, and uses chaotic qi to channel the laws, which barely serves as the skeleton for the Emperor Ziwei Venerable Dharma Aspect!
If it were someone else, unless they had the same configuration, even with the Ziwei Emperor Lamp, they couldn't expand the Ziwei Dharma Aspect to such an exaggerated degree. Even a size of two or three thousand zhang was already the perfect display planned by his Ancestor Chang Feng.
