In the movie Guardians of the Galaxy Vol. 2, Kurt Russell's character is a fabrication of energy (the Light). So in the end when he is fighting Star-Lord (Peter Quill), when there is a bomb ticking, why didn't Ego create another fragment that would save him?
I even thought about a possible explanation: because Peter was controlling the Light, Ego couldn't. But Kurt's character was still healing, so both had access to the Light.
So what could be the reason?
Ego started as a planet and using his knowledge, he created layers which led to a planet like entity.
You can read more here Ego - Wiki