This phrase is used here to mark an important event in the story. If your language has a way for doing this, you could consider using it here. (See: [[rc://en/ta/man/translate/writing-newevent]])
The parts of a woman's body are used to refer to the whole woman. Alternate translation: "How good it is for the woman who bore you and nursed you at her breasts" or "How happy the woman who bore you and nursed you at her breasts must be" (See: [[rc://en/ta/man/translate/figs-synecdoche]])