I can't find the meaning of "In this manner"
"When it wills movement, its arm waves before its eyes, but neither the crib nor the ceiling move. Thus the child learns that its arm and its will are connected, and therefore that its arm is its and not something or someone else's. In this manner, during the first year of life, we learn the fundamentals of who we are and who we are not....."

What does "In this manner" mean?

Question

I can't find the meaning of "In this manner"
"When it wills movement, its arm waves before its eyes, but neither the crib nor the ceiling move. Thus the child learns that its arm and its will are connected, and therefore that its arm is its and not something or someone else's. In this manner, during the first year of life, we learn the fundamentals of who we are and who we are not....."

What does "In this manner" mean?

Answer

It's the same as "in this way"

Answer

"In this way" is the definition of that phrase.

While not a definition, you could also replace the phrase with:

"That is how, in the first year of life, we learn..."

"In this manner" introduces an explanation for how something occurs.

Answer

its means , "like this" or "same as this" or "in line with it"