一般的法子是，例如氣功裏的意守下腹部。普通人平日忙於生計和飲食男女，心神不寧。

來源: Shubin 於 2024-06-15 09:06:31 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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