Healing and wellness are mainly about having peace joy and strength in our mind, in our body, and in our everyday life. They are concepts created by mind. Peace is a concept created by mind, and an experience felt by the mind. So, peace, joy and strength are productions of the mind, and they are the most important things in our life. And if that's so, then we must use the mind to improve and heal our life.
Mindfulness can be so many things, but basically it is awareness of every moment.
Whatever you are feeling, whatever you are doing, try to be aware. I said that. That is a lack of mindfulness. Whatever you are going to say, first think and then say it. Whatever you're going to do, first think, then do it.