An avatar came from a natural planet, which does not have any of the murder and mayhem found on earth. Thus, coming here is in itself a shock that causes a specific reaction.
On top of this, avatars are a threat to a specific kind of beings who will do anything they can to destroy us psychologically. And the inhabitants of earth generally ignore or reject avatars.
This causes avatars to experience a cosmic birth trauma after coming to earth, and this sets a tone for how we react to this planet and how we see ourselves in relation to the planet and to human beings.
Learning about this trauma and how to resolve it can be an major turning point on our spiritual path.