The meaning of Lamentation in dream | Dream interpretation
Loss of money or a friend is foretold by a dream of seeing and hearing a person lamenting a tragedy.
It is possible that the dreamer is going through a repressed period of profound sadness and mourning and the cries he hears are the ones he would like to utter.
If this is not the case, the cause of the cries is a feeling of guilt that manifests in the dream. ... The Big Dictionary of Dreams