I have sat in the same spot for a day, i have let the rain, warm or cold , fall on me. I have had the feeling of breathing nothing. Like i didnt exist, or maybe i just didnt care. These moments however have helped me, by disconnecting i have found myself. I always go home with a new outlook, and a feeling of individuality... i am me, not who you want me to be.
With the years this has evolved, imagine , when you breathe, you are breathing in life force, energy of the nature around you. You become one with nature, and its strength will fill you.