The animals in Winnie the Pooh represent mental illnesses.
One of the great things about Winnie the Pooh is how each character has an interesting, distinct personality, but if you've ever found yourself relating to any of them, we've got some bad news.
The Canadian Medical Association Journal published a study in 2000 that diagnosed each of the characters with crippling mental illnesses.
Pooh, with his attention problems, has ADD and impulsivity with obsessive fixations (on honey).
Eeyore is obviously suffering from depression.
Tigger, with his endless energy, has ADHD.
Piglet has an extreme generalized anxiety disorder.
Kanga has social anxiety disorder manifesting as overprotective mothering.
Owl has dyslexia.
Rabbit has OCD.
And of course Christopher Robin has schizophrenia that manifests as visual and auditory hallucinations.
If you want, you could try to apply each character's illness into Christopher Robin's fractured psyche, but it's probably dark enough as it is.