Mountain climbing/walking has been programed into me from a young age. When I was five I climbed Snowdon having done several climbs in the Lake District previously.  Once a year we usually go on holiday to some mountains and spend the week climbing and huddling in the cold evenings.  The process of walking is great facilitator of thoughts, and climbing a mountain is the ultimate experience of this. The journey has purpose and structure and to be at the top feels like enlightenment. I've had many thoughts whilst climbing many a mountain.