Throughout the book, it is not always clear who is speaking or who they are speaking to. We have notes telling who some scholars think the speakers are. In 5:1 the man speaks to the woman.
The word "garden" is a metaphor for the woman. The man is finally able to fully enjoy the woman as they make love. (See: [[rc://en/ta/man/jit/figs-metaphor]] and [[rc://en/ta/man/jit/figs-euphemism]])
This is an idiom of affection. They are not actually brother and sister. See how you translated this in [Song of Songs 4:9](../04/08.md). Alternate translation: "my dear" or "my darling" (See: [[rc://en/ta/man/jit/figs-idiom]])
This Hebrew word can refer to a woman who is married or to one whom a man has arranged to become his son's wife. If your language has a polite word that a man would use to his wife and that has not been used yet in this book, you could use it here. Otherwise you could use any polite term a man would use with his wife. See how you translated this in [Song of Songs 4:9](../04/08.md).
These are all metaphors for the man enjoying the woman's body ([Song of Songs 1:13](../01/12.md), [Song of Songs 2:4](../02/03.md), [Song of Songs 4:11](../04/10.md), and [Song of Songs 4:14](../04/12.md)). (See: [[rc://en/ta/man/jit/figs-metaphor]])
Eating and drinking are metaphors for making love. Alternate translation: "Make love ... make love ... make love until you are fully satisfied" (See: [[rc://en/ta/man/jit/figs-metaphor]])