Michiko
This is Kawaguchi Hidetoshi. This is my humble answer to the question.
I'm already away from the opportunity to concentrate on meditation and zazen training, and I don't have much to say, but in Buddhism, this meditation is mainly called “meditation,” but since the Buddha was under the Bodhi tree and this “meditation” finally opened up enlightenment, it is an important practice that is essential for aiming for enlightenment, and it should also be emphasized in Buddhist practice.
http://ja.wikipedia.org/wiki/禅定
There are a wide range of methods, from Theravada (fundamental/early) Buddhism to those of various schools of Mahayana Buddhism, as shown in the Wikipedia explanation below.
http://ja.wikipedia.org/wiki/瞑想
Jusei hasn't practiced ascetic practices at Zen monasteries for as long as Mr. Tange, but in the case of Jusei, rather than meditating “stop” to calm the mind and concentrate, he currently places particular emphasis on “view” of “the sky,” and he practices looking at this “sky” several times a day, regardless of location, state, or attitude, regardless of location, state, or attitude.
When it comes to why we look at “the sky,” it is because “understanding the sky” is the wisdom that is effective in defeating the “anguish” that leads to bad behavior (bad work/karma) and “ignorance,” which is the root of it. I try to let the “understanding of the sky” fit into my mind as much as possible. Of course, I'm still immature, but...
In any case, in Buddhism, it is necessary to practice the three disciplines of “precepts, precepts, and wisdom” in a well-balanced manner. Regarding that, I hope you can also refer to the humble answer below.
Question “Does it take training to become a monk?”
http://hasunoha.jp/questions/70
Also, as a thank you already, I think it's still good to be able to proceed under the guidance of a reliable teacher and master.
Kawaguchi Hidetoshi Gassho