To dream that you bitterly lament the loss of friends, or property, signifies great struggles and much distress, from which will spring causes for joy and personal gain.
To lament the loss of relatives, denotes sickness or disappointments, which will bring you into closer harmony with companions, and will result in brighter prospects for the future. ... Ten Thousand Dream Interpretation
This is a dream of contrary. You will hear good news or carry out some favourable business transaction. It does not matter whether you yourself Lament, or whether you dream that someone else is sorrowing.... Mystic Dream Book
(Mourning; Wailing; Yowling) Lamenting and desiring something in a dream connotes evil. Lamentation in a dream also represents a preacher or it could represent a putrid odor that comes from opening the door of a filthy lavatory. Lamentation in a dream also represents dogs’ yowling, drum beating, the ringing sound of cymbals, or it could mean a wedding. Sitting in a place where people are lamenting and mourning their dead in a dream means that an ominous evilmaytake place in that locality, or perhaps it could mean separation between families and friends.
If one sees himself mourning a deceased person in a dream, it means that harm will come to him from the descendents or family of the departed person. Lamenting with great pain and sorrow and mourning over a deceased person in a dream also means waking up to a great joy and happiness. Lamenting in a dream also means adversities which are driven by the person who is lamenting. It also means going astray, or it could denote a flute, as the flute denotes lamenting in a dream. Lamenting in a dream also represents the work of ignorance.... Islamic Dream Interpretation