Tree climbing has been my peacefull repose, especially after finding earplugs i like; though, when there are no saws singing w/o earplugs is nice too!
There is a train of thought, that tree climbing is a perfect exercise that i read long before climbing professionally. For as yoga seeks to recoup essential movements, by leaning towards paraplays of more naturally well animals, by tracing the animate stages of existance in motions, massaging the organism to health and well being. So, tree climbing, achieves all the stretching, strengthening, massaging of skin, nerves, muscle, bone, ligament etc. and also and highest in their focus massage the intestines. The theories point out, that every other animate life form moves and exercises all this in their particular form of locomotion. As an amoeba grows and reaches, a fish waves it's whole body, a snake squirms its length, quadpeds walk in cross axis alignmeant, a bird flys (compressing adominals with every stroke), monkeys climb etc. all maximizing intestinal massage.
It goes on to modern man not having that, and that tree climbing mimicks the closest organism to our structure, that achieves this that we have lost. And without all this toxins build up etc. Also, that stuff builds up in the mind that isn't past out parrallelling that, so people have to go to shrinx, bartenders, hairdressors to get rid of those undigestibale masses!! So by exercising the mind and body, to the like functions of all other life makes some sense for total health. Also, they did a study where climbers are more 'regular', attributed to the compression/expansion-massaging of the intestinal cavity.