Mindfulness is a practice of training ourselves to be in this moment, not going over our past failings, not worrying about what might happen in the future. And it is most definitely mindset that requires practice. In my experience working with people from abusive, neglectful or chaotic upbringings, this can be an especially difficult but rewarding practice to engage in. And it is the non-judgmental piece that I think is often the stumbling block. We are constantly judging and evaluating ourselves, our lives, our past and our future and it is exhausting. Learning mindfulness skills is also useful in learning to feel our feelings and learning that our negative emotions do no last and will not be the end of us. This definition of mindfulness provided by Jon Kabat-Zinn.