Bereavement, what is it?
aa a natural process in reaction to a deep personal loss.
  aa   
     
Causes 
  The death occurred of someone close
  The forseen death
   self and of the loved one
  Separation from a closed one
   divorce, emigration, and imprisonment
The loss of parental expectations
   abortion, and disable child
Damages to one's self-esteem
   breast cancer, and amputations
  Social devaluation

  Disenfranchised losses
   death of a pet