Arcana Coelestia #4348
4348. 'Until he came right up to his brother' means a joining on the part of good that develops from truth, meant by 'Jacob'. This is clear from the meaning of 'coming right up to' as so as to join oneself; from the representation of Esau, to whom 'brother' refers here, as Divine Good within the natural, dealt with above in 4337; and from the representation of 'Jacob' as the good of truth, also dealt with above in 4337. The implications of all this have been explained immediately above in 4347.
Child
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.