Gathering Myrtles
Scholars have said that if someone dreams of gathering myrtle, they might befriend some of their wife's relatives. Myrtle is also interpreted as a man who is faithful to covenants, and it may also symbolize despair due to the etymology of its name (Aas, similar to despair).
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.