Breaks down the koshas and associated practices to tap into them in an accessible, easy-to-grasp way. The last section on his personal guru felt completely disconnected from the rest of the book. If the point was about how the power is within us all individually, that could have made a more interesting chapter than his personal story.
That said, anyone wanting to know more about the power of the koshas and how they align with the fourth through eighth limbs of yoga, this is a solid read.