# My beloved is mine
"My beloved belongs to me". The woman speaks about the man.
# I am his
"I belong to him"
# he grazes
"feeds" or "eats grass." The woman speaks of the man as if he were "a gazelle or a young stag" (verse 17). Grazing is probably a metaphor for lovemaking (Song of Songs 2:1-2).
# lilies
sweet-smelling flowers that grow in places where there is much water.