It is customary that in honor of the bride and groom, festive meals are held in the week following the wedding. During these feasts, the Sheva Berachos are recited. According to Jewish law, the attendance of a panim chadashos — an individual who has not participated in any previous celebration honoring the bride and groom — is required in order to recite the Sheva Berachos.1
We have already explained at length the tremendous quality of the Sheva Berachos — that they draw down lofty spiritual illuminations from the supernal worlds. The attendance of but one panim chadashos suffices in order to be able to recite these awesome blessings; it is in his merit that the bride and groom are blessed with the Sheva Berachos. In other words, tremendously lofty illuminations from the highest worlds are drawn down in the merit of but one Jew.
This informs us of the true greatness of a Jew: in his merit and by his power, truly exalted matters are drawn down to bride and groom.2