Simplify the following text for a Grade 6 native English-speaking person.
Original: When Keenan was 11 , his mother suffered a paralyzing cerebral aneurysm , which would later serve as the inspiration for many of his creative works .
Simplified: He was mean and did not allow Keenan to be creative . When Keenan was 11 , his mother , Judith , had a brain aneurysm that paralyzed her .