Grief is intensely personal and individual. That's one of the reasons it can feel so lonely. When someone dies, even if the death was expected, there's almost always part of us that resists believing it. The feelings that wash over us can feel overwhelming and exhausting. It's why people speak of grief "work", because it does feel like work. And the people around us – our family, friends, employers – may be uncomfortable with our grief, or may want to distract us from it, or encourage us not to express our feelings, or expect us somehow to be "over it" by now.
Grief therapy – whether it's individually or in a group – gives you a safe, reliable context where you can have any and all of your feelings, find support for working through what your experiencing, and get help for making sense of the changes to your world and even your understanding of yourself.