Climbing is much more than a simple mountain sport, for me it is the best way to get to a next brain's level. When you are alone on the rocks, mind is nicely empty, like during a perfect Zen meditation.
During a Free Climber session 6A+ on Corno Pagano Rogno BG I've practiced this discipline for 10 years in a very intense way on falesia and classic routes on the Alps in Italy. Mountain is always a good teacher if you are ready to listen!