For five days we will explore the interface between religious-spiritual practices and the brain sciences. Our speakers will examine a few of the different religious practices that can be found in the world’s religions and they will explain how contemporary neurosciences understand what is happening in the brains of those who engage such practices. We will not only ask if different religious practices produce different brain states, but we will also ask if these different practices produce different states of mental/spiritual health? Do some practices produce one type of mental/spiritual health and other practices produce different types of mental/spiritual health? These discussions may lead us to ask if these diversities of practices and neurological functions lead to a diversity of spiritual experiences?