To be in the Flow is to be so with what is happening and to know so spontaneously what needs to happen that we are one with the movement of the moment, as dancers are one with each other, and one with the music, and one with the dance, so that neither the dancers, nor those watching the dance, know where one ends and the other begins, either one of the dancers, or the couple with the dance, or the dance with the music, or the music with the musicians, and all is one. It works with basketball, and football, and tennis, and singing while taking a shower. We can lose ourselves in the moment by becoming one with the moment. I do it writing this. My wife does it with her flowerbeds. Bakers do it with dough. Cooks do it with breakfast, lunch and dinner. At least occasionally. The trick is to live that way, at one with our life. In order to do that, there can be no motive. There can be no agenda. There can be no opinion. No idea of good and bad. Of IT and NOT-IT. Just dancing. Just being. Got it? Do it! No thinking! Just being. At one with the moment in time and place. Being in sync with the Tao here/now, through all eternity.
Mental health is seeing things as they are with no extreme opinions. Mental illness is a perspective skewed by the 10,000 things. PTSD is a perspective skewed by trauma that overwhelms all available coping mechanisms. When the forces of instability and chaos bludgeon and demolish our ability to maintain balance and harmony, our orientation, direction and ability to function will be lost, perhaps forever. "Tender-minded" people are more at risk than "Tough-minded" people, but even the toughest-minded have limits and boundaries that crumble into ruins with enough emotional/psychological/physical anguish and stress over time. After a point, escape is out of the question, and we carry with us the eternal presence of terror and fear with no external threat to stability and peace. Our mind can be broken beyond repair. Up to that point, the right kind of environment can restore at least the appearance of freedom of functioning, but even there nightmares and irrational fears take their toll. We never out-grow having had abusive/terrifying/traumatic experiences, and have to make allowances for the impact of that betrayal of the human contract to continue to play its way out. "How long, O Lord?" "Until its time is done, my friend, until its time is done." In the meantime, we make allowances, take precautions, take refuge where we find it, and bear the pain, bear the pain.