While Jesus’ disciples were talking about what had happened, Jesus appeared and greeted them. They were frightened and terrified because they thought they were seeing a ghost. But Jesus said, “Why are you so frightened? Why do you doubt? Look at my hands and my feet and see who I am! Touch me and find out for yourselves. Ghosts don’t have flesh and bones as you see I have.”
Luke 24:36-39 (CEV)
Fear and grief rise from our own troublesome thoughts, but the peace of Christ is able to lay them to rest.