“After he put them all out, he took the child’s father and mother and the disciples who were with him, and went in where the child was. He took her by the hand and said to her ‘Talithakoum!’ (which means ‘Little girl, I say to you, get up!’) Immediately the girl stood up and walked around (she was twelve years old)”. 

Mk 5:40, 41, 42 NIV 

People will react differently to this story. Some will shake their heads and dogmatically state, “Impossible!” Others will assume that “Well of course she wasn’t really dead. Maybe she had just fainted, or slipped into some sort of coma”. Others will assume that since three disciples were in on the action they later cooked up a story to stretch the facts so that they could have a good yarn to tell. 
Another possibility is to accept that what the gospel writer tells us happened did happen exactly as he said and that it was a real miracle. If Jesus himself rose from the dead and is the resurrection and the life as he said he was, maybe it is not so far-fetched. Maybe it is our cause-and-effect way of thinking that makes it hard for us to believe these things. Someone said, “The miracles are not the product of a fevered imagination: they are recorded with the utmost restraint and with vivid, circumstantial detail. If, as we believe, God, the creator of the universe, and the Lord of all history, is in Christ, then we ought not to be surprised that other things happen which transcend what we like to call normal and defeat our efforts to explain them” (S. Blanch, quoted in D. English, “The Message of Mark”, p116). 

Lord, you are bigger than I can understand. Help me still to believe.