Now I can lean into joy, even when it makes me feel tender and vulnerable. In fact, I expect tender and vulnerable. Joy is as thorny and sharp as any of the dark emotions. To love someone fiercely, to believe in something with your whole heart, to celebrate a fleeting moment in time, to fully engage in a life that doesn't come with guarantees--these are risks that involve vulnerability and often pain. When we lose our tolerance for discomfort, we lose joy. In fact, addiction research shows us that an intensely positive experience is as likely to cause relapse as an intensely painful experience.