The learned men of old say that the husband himself, entering into the womb of his wife, comes out as the son. Therefore, the wife is called Jaya.
भार्यां पतिः सम्प्रविश्य स यस्माजायते पुनः। जायायास्तद्धि जायात्वं पौराणाः कवयो विदुः॥