The Funeral Bier
Scholars have said that a person seeing themselves on a funeral bier might indicate that they will befriend and brotherhood with people for the sake of God, based on Quranic verses. Some also mentioned that the funeral bier might symbolize a successful man who becomes a reason for the rectitude of ill-behaved or bad people.
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.