How can we make life beautiful again after a death?

Grieving. Remember that we all die. Those that are grieving may need support and encouragement to go on, but time is the great healer. Most of us recover fairly quickly and within months are better, but if this persists, counseling may be helpful from friends, clergy, psychologists, etc. Try and find meaningful substitutes for your loss and try and imagine how the one you lost would want you to recover.