You can use meditation, and prayer, and ritual to foster compassion, love, and inclusiveness, or you can use them to foster hatred, and exclusiveness, and anger. And it's really just a matter of what concepts, ideas you decide to focus on.

The brain is a stubborn organ. Once its primary set of beliefs has been established, the brain finds it difficult to integrate opposing ideas and beliefs. This has profound consequences for individuals and society and helps to explain why some people cannot abandon destructive beliefs, be they religious, political or psychological.