Silence makes your body strong. However, you have to understand the difference between therapy and Ki practise.
When you have a problem, you have many thoughts and emotions which disturbs and damages your body. In that case talking about your problems relaxes your body and stop damaging it even though talking makes your body weak. It is the basic of every medicine and physio/psycho therapy. This make your body weaker but help you to get rid of the bigger damage. Typical example is chemotherapy against cancer, But all therapy and treatment makes your body weaker, some a little bit and some a lot.
Ki training is not a therapy in the sense that the first priority is to keep your body as strong as possible. So you never talk about your problems.
Silence makes your body strong. But it is possible that your thought and emotions may damage your body so you should have a training mentality of making yourself stronger by ensuring hardship. Naturally you should have a strong mind for that.
Yamoka Tessyu was a samurai and a kind of the last Zen master. After him it is not sure that a real Zen master appeared in Japan. He had a son but he did not make his son practise Zen saying that his son is not strong enough. Instead he found him a job of a gardener of the Emperial Garden in Tokyo.
Any training requires certain strength of mind and body. I am inventing training methods which requires minimum strength but you should not forget that you always need certain strength to train yourself.
How can you prevent your thoughts and emotions damage your body. That is seeing your body.
25. March 2020