According to research, the average person has approximately 60,000 thoughts a day. Some of them are quickies, while others tend to take us for a ride. However depressing, it is also important to note that most of the thoughts we have are both negative and recurring. So, while we may all conceptually “get” that we can't trust everything we think, it's a lot more complicated and difficult to actually put into practice.
To sum it up digestively, this author presents us with the framework that thoughts are inevitable, but thinking (or suffering) is optional. In other words, it is well within the realm of possibility to think a thought and without force or effort, simply let it go. In essence, this is the root of meditation and the pulse of the Yoga Sutras, which are thousands of years old, brilliant and also historically a bit difficult for the layperson to understand, absorb and integrate. This book distills it very simply and non-dogmatically in 119 pages. It's is incredibly powerful because in learning to control your thoughts and your thinking mind, you gain clarity, confidence and freedom.