This was something I didn’t know, but it makes sense. Winnie the Pooh was created by A.A. Milne to explain war to his son:
Every stuffed friend in the Hundred Acre Woods is a child-friendly representation of a characteristic of post-traumatic stress. Piglet is paranoia, Eeyore is depression, Tigger is impulsive behaviors, Rabbit is perfectionism-caused aggression, Owl is memory loss, and Kanga & Roo represent over-protection. This leaves Winnie, who Alan wrote in for himself as Christopher Robin’s guide through the Hundred Acre Woods — his father’s mind.