After her release , she later thought she had contacted a celestial God - entity which destroyed worlds .
In the Ultimate Universe , Jean Grey was placed in a mental institute after she began hearing voices and seeing visions of an omnipotent Phoenix God .
After Phoenix 's release , Phoenix later thought she had contacted a God God - entity which destroyed worlds .
In the Ultimate Universe , Jean Grey was placed in a mental institute after she began hearing voices and seeing visions of an omnipotent Phoenix God .