Answer:
Bereavement grief generally relates to grief you experience after a death. Anticipatory grief occurs when you know in advance that someone is going to die. You are anticipating or awaiting a death, traumatic loss, sometimes a divorce, or the unknown outcome of a cancer treatment.
Some say that knowing ahead is better since it gives you time to prepare, but others would say that type of grieving would be harder. Since we rarely get to have our preference in this matter, developing a set of grief skills serves us well under any circumstances.
The way your body and soul handle the grief is the same, you feel the same dread, emotional devastation, emptiness, alone-ness, anger, bargaining, and somewhere along the road, acceptance. Depending on the circumstance, you can also experience guilt, shame or blame. These emotions are toxic and definitely call for expert help to work through.