We have two sides of the brain, with atheism and science more left brained, while religion is more right brained. If the goal is half a brain, religion can be bad for science and atheism since it keeps the whole brain in focus. The same is true the other way around. If one is only right brain religious, without concern for science, they too prefer half a brain. Science can spoil that.
If you look at religion and the right brain, different religions approach the right brain differently. Christianity is fundamentally about love, which is a feeling that connects and integrates. If you loved everyone, you would be integrated with humanity. The left brain differentiates and divides and tends to reduce love to a differential group.
Eastern religions are often different and take more of a left brain intellectual approach to the right brain. Kung Fu is body and mind. One learns to coordinate the body in 3-D (uses all the tools of the body) leading to right cerebral emulation of the cerebellum which processes body coordination and integration.
Indian eastern mysticism is often esoteric, trying to use left brain language to express 3-D concepts of right brain. Once inside the right brain, since language is not processed within the right brain, language starts to break down; gets esoteric. The right brain uses a faster language that needs to be experienced. They also make use of procedures that allow one to enter and explore the right side of the brain.
My interests in the right brain started with eastern mysticism, which was popular in the hippy years. It was about alternate states of mind, which meant departure from just the left brain. Because this is outside western science, it was an R&D process. The psychologist Carl Jung and his concept of the collective unconscious is about the right brain. This orientation is less popular than left brain psychology since the latter better cater to the needs of the left brainers.