Spirituality is, in large part, a state-change business. Before you pray, do yoga, meditate, etc., you're thinking about mortgages and to-do lists, but during your practice, something shifts and you feel opened to something that feels "greater." Afterward, you feel refreshed and re-energized. This is what state-change is: moving your mind from one way of being to another. And spiritual seekers have developed a wonderful array of tools to enable it to happen.
For most spiritual folks, state change is what it's all about. As I'll describe in a moment, spiritual states have the power to open the mind, nourish the heart, and change the world. They are, I think, the most important force for social and environmental sustainability on the planet. And they can be lots of fun, too.
But states can also become dead-ends, or misconstrued, or actually dangerous.