One of the Sheva Brachos we say is:
שמח תשמח רעים האהובים, כשמחך יצירך בגן עדן מקדם. ברוך אתה ה', משמח חתן וכלה.
Grant perfect joy to these loving companions, as you did your creations in the Garden of Eden. Blessed are You, LORD, who grants the joy of groom and bride. (Translation from here)
What is the Perfect Joy that was in the Garden of Eden that we aspire to for our Bride and Groom?