What a wonderful question! I’ve never heard anything quite like that, I want to know too,although
I have quite a bit of various idea of thinking about.
In short, I think reading books. children's books are particularly good.
It is not simply because it is easy, it stimulates the freedom of childhood memory.
If you read a masterpiece, you can immerse yourself as if you were in the story world.
Then you can absorb words and life energy naturally just like a child absorbs words and the world.