5:1 came to my garden. The lover accepts his beloved’s invitation.
my sister, my bride. The girl’s inaccessibility has finally been overcome (4:8 note).
Eat . . . drunk with love. The speakers are not specified, but they echo the language used by the shepherd in the previous two lines (“I ate . . . I drank”). Eating and drinking are often figurative for lovemaking. The girl dreams of the time when her relationship with her beloved will not only be consummated, but have the approval of family and friends.