Grief is the natural and normal reaction to loss of any kind. Usually when we speak of grief we speak of the death of a loved one. Some resources to help in dealing with grief include:
Not just standard service, but service that sets the standard.
On Death and Dying
by Elisabeth Kubler-Ross
When Bad Things Happen to Good People
by Harold S. Kushner
A Grief Observed
by C. S. Lewis
Don’t Take My Grief Away From Me
by Doug Manning
How to Go on Living When Someone You Love Dies
by Therese A. Rando
Why Are the Casseroles Always Tuna?
by Darcie D. Sims
by Granger E. Westberg