To be truly happy, you need to be able to experience joy at the moment when we ourselves want it. Chad-Meng Tan, a former engineer at Google and now an expert on self-development, shows that happiness is not a constant at all and that thanks to regular mind training, it can be shifted to the positive edge of the emotional scale. The source of happiness is not somewhere outside, it is inside us. From the book you will learn how to get to this source, calm your mind and cope with pain. For anyone who wants to be happier and make people around them happy.