We all know that yoga does wonders for the mind. Even novices of asana, pranayama, and meditation report feeling increased mental stability and clarity during and after practice. Now, thanks to sophisticated brain imaging technologies, neuroscience is proving what teachers and practitioners have known for ages—that yoga and meditation can literally change your brain. But what exactly is going on up there? Take a peek inside—a basic understanding of brain anatomy and function can serve as a handy road map for your inner journey.