The young woman uses euphemisms to describe her dream so that it can be interpreted in two different ways: 1) the woman describes a dream about a night when the man came to visit her at her house; and 2) the woman describes a dream about starting to sleep with the man. (See: [[rc://en/ta/man/translate/figs-euphemism]])
The heart is the center of thought and feeling. Alternate translation: "but I could think clearly" or "but I knew what I was feeling" (See: [[rc://en/ta/man/translate/figs-idiom]])
This phrase refers to the man whom the woman loves. In some languages it may be more natural for her to refer to him as "my lover." See how you translated this in [Song of Songs 1:13](./12.md). Alternate translation: "my dear one" or "my lover"
Possible meanings are 1) literal, "Open the door for me," or 2) metaphorical, "Let me make love to you." (See: [[rc://en/ta/man/translate/figs-explicit]] and [[rc://en/ta/man/translate/figs-metaphor]])
This is an idiom of affection. They are not actually brother and sister. See how you translated this in [Song of Songs 4:9](../04/09.md). Alternate translation: "my dear" or "my darling" (See: [[rc://en/ta/man/translate/figs-idiom]])
The words "is wet" are understood from the previous phrase. They can be repeated here. Alternate translation: "my hair is wet with the night's dampness" (See: [[rc://en/ta/man/translate/figs-ellipsis]])