Every moment in our life happens only once, and if we let it slip away, we lose it forever—an idea captured by the Japanese phrase (pronounced ). Often spoken in Japan when greeting someone or saying goodbye, to convey that the encounter is unique and special, it is a tenet of Zen Buddhism and is attributed to a sixteenth-century master of the Japanese tea ceremony, or "ceremony of attention," whose intricate rituals compel us to focus on the present moment. From this age-old concept comes a new kind of mindfulness. In , you will learn to... Every one of us contains a key that can open the door to attention, harmony with others, and love of life. And that key is .