Benefits of Practising in a Natural Environment (outdoors)

Sawi Sensei (founder of TaiKiKen) said:-
It is good to conduct Taiki-ken training out of doors. A training hall is unnecessary. It is wrong to feel that facilities of this kind are prerequisites of practice. Out-of-doors training, especially in the woods in the morning is best because a setting of this kind enables one to learn many things from nature. Since martial arts are matters of gradual, personal growth, daily training in a natural setting is the one and only way to true progress.