Verse 7. And that thus no particular external affection can be removed from its own subdivision or general class to another, because in every case the Internal of the man of the church conjoins to itself its own particular and perfectly corresponding External.

A child is a young boy or girl in the care of parents, older than a suckling or an infant, but not yet an adolescent. "Children" are sometimes used as a name for a large group of descendants of one person, such as the Children of Israel, or even all human beings as the Children of Men. A child represents innocence and charity, where innocence is the willingness to be led, and charity is love. This is why Jesus blessed them and suggested that we all become like children in order to enter heaven.